Pat’s Costa Rica Bird List, 2021

2021 is already well underway, are you birding? I hope so because watching a flock of redpolls bound through wintery airs that echo with the calls of crows is nature connection magic. Tracking the soaring of a Bateleur in hot African skies is a lifetime gift. Watching Baltimore Orioles consort with Blue-gray Tanagers as Great Kiskadees throw down their wings and yell is the perfect start to any day.

I saw some of that avian action this morning.

During anxious times, birding is therapeutic, it brings us back to center, can wipe away the worries and act as a source of mental fortitude. Watch some birds today and see where it takes you. Watch some birds all year long and enjoy the journey, keep a list. I follow the year list birding tradition. I’m not sure when it started, who ever kept the first list, but it gives me something to strive for, facilitates noting each special moment like when I saw that first Painted Bunting of 2021.

I saw a male just out back this very morning. It flew to some bare branches near a Yellow-throated Euphonia and a pair of Blue Grosbeaks.

I can also note my first White-fronted Nunbird, I had a few at Tirimbina Reserve just the other day. 

Although I would love to see some birds elsewhere, even if I don’t, my year list will make for some fun documentation. After all, Costa Rica is no small player on the world birding stage. We have nearly 930 species on the official list and with some effort, 700 in a year is a feasible goal. Here I go, I hope you also surpass your birding goals in 2021.

1. Great Tinamou – Tinamus major; Tirimbina, 9-Jan
2. Little Tinamou – Crypturellus soui; Ciudad Neily area, 3-Feb
3. Thicket Tinamou – Crypturellus cinnamomeus; Rincon de la Vieja, 27-Feb
4. Slaty-breasted Tinamou – Crypturellus boucardi; Rio Negro area northern flank Rincon de la Vieja, 24-March 
5. Great Curassow – Crax rubra; Rincon de la Vieja, 27-Feb
6. Crested Guan – Penelope purpurascens; Carara area, 13-Feb
7. Gray-headed Chachalaca – Ortalis cinereiceps; Tirimbina, 9-Jan
8. Plain Chachalaca – Ortalis vetula; Cabuya, 2-Nov
9. Black Guan – Chamaepetes unicolor; Poas area, 27-Jan
10. Greater White-fronted Goose – Anser albifrons; Las Trancas, 10-December 
11. Black-bellied Whistling-Duck – Dendrocygna autumnalis; Tirimbina, 9-Jan
12. Fulvous Whistling-Duck – Dendrocygna bicolor; El Viejo Wetlands, 23-Dec
13. Muscovy Duck – Cairina moschata; Embalse Turrucares, 16-Jan 
14. American Wigeon – Mareca americana; Ciudad Neily area, 3-Feb
15. Blue-winged Teal – Anas discors; Embalse Turrucares, 16-Jan
16. Cinnamon Teal – Anas cyanoptera; Ciudad Neily area, 3-Feb
17. White-cheeked Pintail – Anas bahamensis; Punta Morales, 3-Nov
18. Northern Pintail – Anas acuta; Ciudad Neily area, 3-Feb
19. Northern Shoveler – Spatula clypeata; Ciudad Neily area, 3-Feb
20. Lesser Scaup – Aythya affinis; Ciudad Neily area, 3-Feb
21. Buffy-crowned Wood-Partridge – Dendrortyx leucophrys; Providencia area, 18-Feb
22. Spotted Wood-Quail – Odontophorus guttatus; Providencia area, 18-Feb
23. Crested Bobwhite – Colinus cristatus; Guacalillo, 30-Jan
24. Least Grebe – Tachybaptus dominicus; Ciudad Neily area, 3-Feb
25. Rock Pigeon – Columba livia; San Joaquin de Heredia, 1-Jan
26. Band-tailed Pigeon – Patagioenas fasciata; Providencia area, 18-Feb
27. Red-billed Pigeon – Patagioenas flavirostris; San Joaquin de Heredia, 1-Jan
28. Pale-vented Pigeon – Patagioeanas cayannensis; Ciudad Neily area, 3-Feb
29. Scaled Pigeon – Patagioenas speciosa; Rio Negro area northern flank Rincon de la Vieja, 24-March 
30. Ruddy Pigeon – Patagioenas subvinacea; Poas area, 23-Jan
31. Short-billed Pigeon – Patagioenas nigrirostris; Carara area, 13-Feb
32. Inca Dove – Columbina inca; San Joaquin de Heredia, 1-Jan
33. Plain-breasted Ground-Dove – Columbina minuta; Ceiba de Orotina, 19-Jan
34. Common Ground-Dove – Columbina passerina; San Joaquin de Heredia, 1-Jan
35. Ruddy Ground-Dove – Columbina talpacoti; Tirimbina, 9-Jan
36. Blue Ground-Dove – Claravis pretiosa; Ciudad Neily area, 3-Feb
37. Maroon-chested Ground-Dove – Claravis mondetoura; Nochebuena Restaurant trails, 25-June
38. Ruddy Quail-Dove – Geotrygon montana; Rio Negro area northern flank Rincon de la Vieja, 24-March 
39. Chiriqui Quail-Dove – Zentrygon chiriquiensis; Valle Quetzales, 2-March
40. Purplish-backed Quail-Dove – Zentrygon lawrencii; Pocosol Research Station, 27-July
41. Buff-fronted Quail-Dove – Zentrygon costaricensis; Poas area, 27-Jan
42. White-tipped Dove – Leptotila verreauxi; San Joaquin de Heredia, 1-Jan
43. Gray-chested Dove – Leptotila cassinii; Carara area, 13-Feb
44. Gray-headed Dove – Leptotila plumbeiceps; Malpais, 19-April 
45. White-winged Dove – Zenaida asiatica; San Joaquin de Heredia, 1-Jan
46. Mourning Dove – Zenaida macrora; Ceiba de Orotina, 19-Jan
47. Mangrove Cuckoo – Coccyzus minor; Guacalillo, 30-Jan
48. Yellow-billed Cuckoo – Coccyzus americanus; San Miguel de Turrucares, 26-Sep
49. Squirrel Cuckoo – Piaya cayana; San Joaquin de Heredia, 1-Jan
50. Groove-billed Ani – Crotophaga sulcirostris; San Joaquin de Heredia, 1-Jan
51. Smooth-billed Ani – Crotopgaha ani; Ciudad Neily area, 3-Feb
52. Striped Cuckoo – Tapera naevia; Ceiba de Orotina, 19-Jan
53. Lesser Ground-Cuckoo – Morrococcyx erythropygus; Guacalillo, 30-Jan
54. Great Potoo – Nyctibius grandis; Union de Guapiles, 15-March
55. Northern Potoo – Nyctibius jamaicensis; Malpais, 19-April 
56. Short-tailed Nighthawk – Lurocalis semitorquatus; Tortuguero National Park area, 14-April
57. Common Nighthawk – Chordeilis minor; Tortuguero National Park area, 14-April
58. Lesser Nighthawk – Chordeilis acutipennis; Manzanillo, 9-Oct
59. Common Pauraque – Nyctidromus albicollis; San Joaquin de Heredia, 1-Jan
60. Dusky Nightjar – Antrostomus saturatus; Providencia area, 18-Feb
61. Black Swift – Cypseloides niger; Pozo Azul, 28-March
62. Spot-fronted Swift – Cypseloides cherriei; Malpais, 19-April 
63. White-chinned Swift – Cypseloides cryptus; Bosque de Nino, 6-March
64. White-collared Swift – Streptoprocne zonaris; Cinchona, 6-Feb
65. Chestnut-collared Swift – Streptoprocne rutila; Bosque de Nino, 6-March
66. Chimney Swift – Chaetura pelagica; Tortuguero National Park area, 7-April
67. Vaux’s Swift – Chaetura vauxi; San Joaquin de Heredia, 1-Jan
68. Gray-rumped Swift – Chaetura cinereiventris; Tirimbina, 9-Jan
69. Costa Rican Swift – Chaetura fumosa; Ciudad Neily area, 3-Feb
70. Lesser Swallow-tailed Swift – Panyptila cayannensis; Ciudad Neily area, 3-Feb
71. White-necked Jacobin – Florisuga mellivora; Tirimbina, 9-Jan
72. White-tipped Sicklebill – Eutoceres aquila; Quebrada Gonzalez, 3-August
73. Green Hermit – Phaethornis guy; Poas area, 23-Jan
74. Long-billed Hermit – Phaethornis longirostris; Tirimbina, 9-Jan
75. Stripe-throated Hermit – Phaethornis striigularis; Tortuguero National Park area, 7-April
76. Band-tailed Barbthroat – Threnetes ruckeri; La Selva area, 9-Jan
77. Bronzy Hermit – Glaucis aeneus; Ciudad Neily area, 3-Feb
78. Green-fronted Lancebill – Doryfera ludovicae, San Luis Canopy, 12-Sep
79. Lesser Violetear – Colibri cyanotus; Varablanca area, 9-Jan
80. Brown Violetear – Colibri delphinae; Cinchona, 17-May 
81. Veraguan Mango – Anthracothorax veraguensis; Ciudad Neily area, 3-Feb
82. Green-breasted Mango – Anthracothorax prevostii; Pozo Azul, 28-March
83. Purple-crowned Fairy – Heliothryx barroti; Pocosol Research Station, 27-July
84. Green Thorntail – Discosura conversii; Cinchona, 6-Feb
85. Black-crested Coquette – Lophornis helenae; Rio Negro area northern flank Rincon de la Vieja, 24-March
86. Violet-headed Hummingbird – Klais guimeti; Rio Negro area northern flank Rincon de la Vieja, 24-March  
87. Bronze-tailed Plumeleteer – Chalybura urochrysia; Tirimbina, 9-Jan
88. Scaly-breasted Hummingbird – Phaeochroa cuvierii; Tirimbina, 9-Jan
89. Green-crowned Brilliant – Heliodoxa jacula; Cinchona, 6-Feb
90. Talamanca Hummingbird – Eugenes spectabilis; Poas area, 27-Jan
91. Plain-capped Starthroat – Heliomaster constantii; Guacalillo, 30-Jan 
92. Long-billed Starthroat – Heliomaster longrostris, Union de Guapiles, 12-Sep
93. Crowned Woodnymph – Thalurania colombica; Tirimbina, 9-Jan
94. Fiery-throated Hummingbird – Panterpe insignis; Poas area, 23-Jan
95. Violet Sabrewing – Campylopterus hemileucurus; Poas area, 27-Jan
96. Purple-throated Mountain-gem – Lampornis calolaemus; Poas area, 23-Jan
97. White-throated Mountain-gem – Lampornis castaneoventris; Providencia area, 18-Feb
98. White-bellied Mountain-gem – Lampornis hemileucus; Cinchona, 6-Feb
99. Stripe-tailed Hummingbird – Eupherusa eximia; Providencia area, 18-Feb
100. Black-bellied Hummingbird – Eupherusa nigriventris; Cinchona, 17-May 
101. Ruby-throated Hummingbird – Archilochus colubris; Embalse Turrucares, 16-Jan
102. Mangrove Hummingbird – Amazilia boucardi; Mata de Limon, 6-August
103. Snowy-bellied Hummingbird – Amazilia edward; Providencia area, 18-Feb
104. Blue-vented Hummingbird – Amazilia hoffmanni; San Joaquin de Heredia, 1-Jan
105. Rufous-tailed Hummingbird – Amazilia tzacatl; San Joaquin de Heredia, 1-Jan
106. Charming Hummingbird – Amazilia decora; Ciudad Neily area, 3-Feb
107. Blue-chested Hummingbird – Amazilia amabilis; Tirimbina, 9-Jan
108. Cinnamon Hummingbird – Amazilia rutila; Ceiba de Orotina, 19-Jan
109. Sapphire-throated Hummingbird – Lepidoyga coeruleogularis; Ciudad Neily area, 3-Feb
110. Snowcap – Microchera albocoronata; El Copal, 29-July
111. Coppery-headed Emerald – Elvira cupreiceps; Poas area, 23-Jan
112. White-tailed Emerald – Elvira cupreiceps; Bosque Tolomuco, 27-Dec
113. Blue-throated Goldentail – Hylocharis eliciae; Ciudad Neily area, 3-Feb
114. Canivet’s Emerald – Chlorostilbon canivetii; Rincon de la Vieja, 27-Feb
115. Magenta-throated Woodstar – Calliphlox bryantae; Valle Quetzales, 2-March
116. Volcano Hummingbird – Selasphorus flammula; Poas area, 23-Jan
117. Scintillant Hummingbird – Selasphorus scintilla; Poas area, 27-Jan
118. White-throated Crake – Laterallus albigularis; La Selva area, 9-Jan
119. Gray-breasted Crake – Laterallus exilis; Tortuguero National Park area, 8-April
120. Paint-billed Crake – Neocrez erythrops; Jaco wetlands, 8-May
121. Uniform Crake – Amaurolimnas concolor; Rio Negro area northern flank Rincon de la Vieja, 24-March
122. Spotted Rail – Pardirallus maculatus; Las Trancas, 11-December 
123. Sora – Porzana carolina; Las Trancas, 22-Dec
124. Rufous-necked Wood-Rail – Aramides axillaris; Malpais, 19-April 
125. Russet-naped Wood-Rail – Aramides albiventris; Tortuguero National Park area, 7-April
126. Gray-cowled Wood-Rail – Aramides cajaneus; San Joaquin de Heredia, 1-Jan
127. Purple Gallinule – Porphyrio martinicus; Ciudad Neily area, 3-Feb
128. Common Gallinule – Crypturellus soui; Ciudad Neily area, 3-Feb
129. American Coot – Fulica americana; Ciudad Neily area, 3-Feb
130. Limpkin – Aramus guarauna; Bagaces, 11-December 
131. Northern Jacana – Jacana spinosa; Embalse Turrucares, 16-Jan
132. Sungrebe – Heliornis fulica; Tortuguero National Park area, 7-April
133. Double-striped Thick-Knee – Burhinus bistriatus; Ceiba de Orotina, 21-March
134. American Oystercatcher – Haematoupus palliatus; Dominical, 1-Feb
135. Southern Lapwing – Vanellus chilensis; Ceiba de Orotina, 19-Jan
136. Black-bellied Plover– Charadrius squatarola; Punta Morales, 8-May 
137. Collared Plover – Charadrius collaris; Punta Morales, 16-Oct 
138. Wilson’s Plover – Charadrius wilsonia; Punta Morales, 23-March 
139. Semipalmated Plover– Charadrius semipalmatus; Punta Morales, 23-March 
140. Killdeer – Charadrius vociferus; San Joaquin de Heredia, 23-Jan
141. Black-necked Stilt – Himantopus mexicanus; Ciudad Neily area, 3-Feb
142. Upland Sandpiper – Bartramia longicauda, Airport, 3-Sep
143. Ruddy Turnstone – Arenaria interpres; Malpais, 19-April 
144. Sanderling – Calidris alba; Puntarenas, 19-Jan
145. Least Sandpiper – Calidris minutilla Ciudad Neily area, 3-Feb
146. Semipalmated Sandpiper – Calidris pusilla; Ciudad Neily area, 3-Feb
147. Western Sandpiper – Calidris mauri; Punta Morales, 23-March 
148. Baird’s Sandpiper – Calidris bairdii; Juan Santamaria Airport area, 1-Oct
149. Pectoral Sandpiper – Calidris melanotos; Ciudad Neily area, 3-Feb
150. Buff-breasted Sandpiper – Calidris subruficollis; Juan Santamaria Airport area, 2-Oct
151. Ruff – Philomachus pugnax; Ciudad Neily area, 3-Feb
152. Stilt Sandpiper – Calidris himantopus; Punta Morales, 8-May
153. Surfbird – Calidris virgata; Punta Morales, 28-August
154. Wandering Tattler – Tringa incana; Malpais, 19-April 
155. Wilsons’ Snipe – Gallinago delicata; Las Trancas, 11-December 
156. Willet – Tringa semipalmata; Caldera, 19-Jan
157. Greater Yellowlegs – Tringa melanoleuca; Guacalillo, 30-Jan
158. Lesser Yellowlegs – Tringa flavipes; Ciudad Neily area, 3-Feb
159. Solitary Sandpiper – Bartramia longicauda, Airport, 3-Sep
160. Whimbrel – Numenius phaeopus; Caldera, 19-Jan
161. Long-billed Curlew – Numenius americanus; Punta Morales, 23-March 
162. Marbled Godwit – Limosa fedoa; Punta Morales, 23-March 
163. Short-billed Dowitcher – Limnodromus griseus; Ciudad Neily area, 3-Feb
164. Long-billed Dowitcher – Limnodromus scolopaceus; Ciudad Neily area, 3-Feb
165. Spotted Sandpiper – Actitis macularius; Dominical, 1-Feb
166. Red-necked Phalarope – Phalaropus lobatus; Malpais pelagic, 20-April
167. Pomarine Jaeger – Stercorarius pomarinus; Tortuguero National Park area, 15-April
168. Parasitic Jaeger – Stercorarius parasiticus; Puntarenas, 19-Jan
169. Long-tailed Jaeger – Stercorarius longicaudus; Malpais pelagic, 20-April
170. Sabine’s Gull – Xema sabini; Malpais pelagic, 20-April 
171. Laughing Gull – Leucophaeus atricilla; Caldera, 19-Jan
172. Franklin’s Gull – Leucophaeus pipixcan; Caldera, 19-Jan
173. Western Gull – Larus occidentalis; Puntarenas, 3-Nov
174. Caspian Tern – Hydroprogne caspia; Chomes, 23-Dec
175. Royal Tern – Thalasseus maximus; Puntarenas, 19-Jan
176. Elegant Tern – Thalasseus elegans; Puntarenas, 2-Nov
177. Sandwich Tern – Thalasseus sanvicensis; Puntarenas, 19-Jan
178. Black Tern – Chlidonias niger; Guacalillo, 30-Jan
179. Brown Noddy – Anous stolidus; Malpais pelagic, 20-April
180. WHITE TERN – GYGIS ALBA; Malpais pelagic, 20-April 
181. Sooty Tern – Onychoprion fuscatus; Malpais pelagic, 20-April
182. Bridled Tern – Onychoprion anaethetus; Malpais pelagic, 20-April 
183. Forster’s Tern – Sterna forsteri; Chomes, 23-Dec
184. Common Tern – Sterna hirundo; Malpais pelagic, 20-April 
185. Arctic Tern – Sterna paradisaea; Malpais pelagic, 20-Apri
186. Black Skimmer – Rhynchops niger; Punta Morales, 8-May
187. Sunbittern – Europyga helias; Rinconcito, 3-March 
188. Wedge-rumped Storm-Petrel – Oceanodroma tethys; Malpais pelagic, 20-April 
189. Black Storm-Petrel – Oceanodroma melania; Malpais pelagic, 20-April 
190. Least Storm-Petrel – Oceanodroma microsoma; Malpais pelagic, 20-April 
191. Wedge-tailed Shearwater – Ardenna pacifica; Malpais pelagic, 20-April
192. Pink-footed Shearwater – Ardenna creatopus; Malpais pelagic, 20-April
193. Galapagos Shearwater – Puffinus subalaris ; Malpais pelagic, 20-April 
194. Magnificent Frigatebird – Fregata magnificens; Puntarenas, 19-Jan
195. Brown Pelican – Pelicanus occidentalis; Puntarenas, 19-Jan
196. Neotropic Cormorant – Phalacrocorax brasilianus; Tirimbina, 9-Jan
197. Masked Booby – Sula dactylatra ; Malpais pelagic, 20-April 
198. Brown Booby – Sula leucogaster; Guacalillo, 30-Jan
199. Red-footed Booby – Sula sula ; Malpais pelagic, 20-April
200. Wood Stork – Mycteria americana; Guacalillo, 30-Jan
201. Jabiru – Jabiru mycteria; Jaco, 6-August
202. Anhinga – Anhinga anhinga; Ciudad Neily area, 3-Feb 
203. Rufescent Tiger-Heron – Tigrisoma lineatum; Sarapiqui, 6-Dec
204. Bare-throated Tiger-Heron – Tigrisoma mexicanum; Ciudad Neily area, 3-Feb
205. Fasciated Tiger-Heron – Tigrisoma fasciatum; Aguas Zarcas, 3-April
206. Great Egret – Ardea alba; Guacalillo, 30-Jan
207. Great Blue Heron – Ardea herodias; San Joaquin de Heredia, 1-Jan
208. Little Blue Heron – Egretta caerulea; Tirimbina, 9-Jan
209. Snowy Egret – Egretta thula; Tirimbina, 9-Jan
210. Tricolored Heron – Egretta tricolor; Guacalillo, 30-Jan
211. Reddish Egret – Egretta rufescens; Tarcoles, 1-Feb
212. Cattle Egret – Bubulcus ibis; San Joaquin de Heredia, 1-Jan
213. Least Bittern – Ixobrychus exilis; near Jaco, 4-April
214. Green Heron – Butorides virescens; Ciudad Neily area, 3-Feb
215. Agami Heron – Agamia agami; Centro Manu, 22-Oct
216. Black-crowned Night-Heron – Nycticorax nycticorax; Cano Negro, 4-Dec
217. Yellow-crowned Night-Heron – Nictanassa violacea; Embalse Turrucares, 16-Jan
218. Boat-billed Heron – Cochlearius cochlearius; Embalse Turrucares, 16-Jan
219. White Ibis – Endocimus albus; Ciudad Neily area, 3-Feb
220. Green Ibis – Mesembrinibis cayannensis; Tortuguero National Park area, 14-April
221. Glossy Ibis – Plegadis falcinellus; Ciudad Neily area, 3-Feb
222. Roseate Spoonbill – Platea ajaja; Ciudad Neily area, 3-Feb
223. Black Vulture – Coragyps atrata; San Joaquin de Heredia, 1-Jan
224. Turkey Vulture – Cathartes aura; San Joaquin de Heredia, 1-Jan
225. Lesser Yellow-headed Vulture – Cathartes burrovianus; Ciudad Neily area, 3-Feb
226. King Vulture – Sarcoramphus papa; Ciudad Neily area, 3-Feb
227. Osprey – Pandeon haeliatus; Ciudad Neily area, 3-Feb
228. Pearl Kite – Gampsonyx swainsonii; Ceiba de Orotina, 19-Jan
229. White-tailed Kite – Elanus leucurus; San Joaquin de Heredia, 1-Jan
230. Gray-headed Kite – Leptodon cayanensis; Tortuguero National Park area, 7-April
231. Double-toothed Kite – Harpagus bidentatus; Ciudad Neily area, 3-Feb
232. Swallow-tailed Kite – Elanoides forficatus; Providencia area, 18-Feb
233. Hook-billed Kite – Chondrohierax uncinatus; Sarapiqui, 6-Dec
234. Black Hawk-Eagle – Spizaetus tyrannus; Tirimbina, 9-Jan
235. Ornate Hawk-Eagle – Spizaetus ornatus; Valle Quetzales, 2-March
236. Bicolored Hawk – Accipiter bicolor; Pocosol Research Station, 26-July
237. Cooper’s Hawk – Accipiter cooperii; San Joaquin de Heredia, 14-Feb
238. Tiny Hawk – Accipiter superciliosus; Rincon de Osa, 29-Dec
239. Mississippi Kite – Ictinia mississippiensis; Tortuguero National Park area, 14-April
240. Plumbeous Kite – Ictinia plumbea; Carara area, 13-Feb
241. Snail Kite – Rhostrhamus sociabilis; Las Trancas, 11-December 
242. Crane Hawk – Geranospiza caerulescens; Guanacaste, 26-Feb
243. White Hawk – Pseudastur albicollis; Cinchona, 9-Jan
244. Savanna Hawk – Buteogallus meridionalis; Ciudad Neily, 28-Dec
245. Common Black Hawk – Buteogallus anthracinus; Guacalillo, 30-Jan
246. Barred Hawk – Morphnarchus princeps; Rio Negro area northern flank Rincon de la Vieja, 24-March
247. Harris’s Hawk – Parabuteo unicinctus; Ceiba de Orotina, 19-Jan
248. Semiplumbeous Hawk – Leucopternis semiplumbeous; Manuel Brenes Road, 12-Sep 
249. Roadside Hawk – Rupornis magnirostris; Ciudad Neily area, 3-Feb
250. Gray-lined Hawk – Buteo nitidus; Ciudad Neily area, 3-Feb
251. Gray Hawk – Buteo plagiatus; San Joaquin de Heredia, 1-Jan
252. Broad-winged Hawk – Buteo platypterus; Poas area, 23-Jan
253. Short-tailed Hawk – Buteo brachyurus; Puntarenas, 19-Jan
254. Swainson’s Hawk – Buteo swainsoni; Ciudad Neily area, 3-Feb
255. White-tailed Hawk – Geranoaetus albicaudatus; near Liberia, 23-March 
256. Zone-tailed Hawk – Buteo albonotatus; Guacalillo, 30-Jan
257. Red-tailed Hawk – Buteo jamaicensis; Poas area, 23-Jan
258. Pacific Screech-Owl – Megascops cooperi; Malpais, 19-April 
259. Middle American Screech-Owl – Megascops guatemalae; Malpais, 19-April 
260. Bare-shanked Screech-Owl – Megascops clarkii; Poas area, 27-Jan
261. Crested Owl – Lophostrix cristata; Pocosol Research Station, 27-July
262. Costa Rican Pygmy-Owl – Glaucidium costaricanum; Nochebuena Restaurant trails, 25-June
263. Ferruginous Pygmy-Owl – Glaucidium brasilianum; Ceiba de Orotina, 19-Jan
264. Central American Pygmy-Owl – Glaucidium griseiceps; Rio Negro area northern flank Rincon de la Vieja, 24-March
265. Black-and-white Owl – Ciccaba nigrolineata; Pocosol Research Station, 27-July 
266. Mottled Owl – Ciccaba virgata; San Joaquin de Heredia, 17-Sep
267. Spectacled Owl – Pulsatrix perspicillata; Ciudad Neily area, 3-Feb
268. Striped Owl – Asio clamator; Cano Negro, 4-Dec
269. Unspotted Saw-whet Owl – Aegolius ridgwayi; Irazu Volcano, 29-July
270. Resplendent Quetzal – Pharomacrus mocinno; Poas area, 23-Jan
271. Lattice-tailed Trogon – Trogon clathratus; Manuel Brenes Road, 25-July
272. Slaty-tailed Trogon – Trogon massena; Tirimbina, 9-Jan
273. Black-throated Trogon – Trogon rufus; Tirimbina, 9-Jan
274. Gartered Trogon – Trogon caligatus; Tirimbina, 9-Jan
275. Black-headed Trogon – Trogon melanocephalus; Ceiba de Orotina, 19-Jan
276. Elegant Trogon – Trogon elegans; Malpais, 19-April
277. Collared Trogon – Trogon collaris; Providencia area, 18-Feb
278. Tody Motmot – Hylomanes momotula; Rincon de la Vieja, 27-Feb
279. Rufous Motmot – Baryphthengus martii; Sarapiqui, 16-May
280. Keel-billed Motmot – Electron carinatum; Sarapiqui, 6-Dec
281. Broad-billed Motmot – Electron platyrhynchum; Tirimbina, 9-Jan
282. Lesson’s Motmot – Momotus lessonnii; Alajuela, 23-Jan
283. Turquoise-browed Motmot – Eumomota superciliosa; Ceiba de Orotina, 19-Jan
284. Ringed Kingfisher – Megaceryle torquata; San Joaquin de Heredia, 1-Jan
285. Belted Kingfisher – Megaceryle alcyon; Tortuguero National Park area, 7-April
286. Amazon Kingfisher – Chloroceryle amazona; Tirimbina, 9-Jan
287. Green Kingfisher – Chloroceryle americana; Tortuguero National Park area, 7-April
288. Green-and-Rufous Kingfisher – Chloroceryle inda; Manzanillo, 9-Oct
289. American Pygmy-Kingfisher – Chloroceryle aenea; Manzanillo, 9-Oct
290. White-necked Puffbird – Notharchus hyperrhynchus; Tortuguero National Park area, 6-April
291. Pied Puffbird – Notharchustectus; Tortuguero National Park area, 6-April
292. White-whiskered Puffbird – Malacoptila panamensis; Rio Negro area northern flank Rincon de la Vieja, 24-March 
293. White-fronted Nunbird – Monasa morphoeus; Tirimbina, 9-Jan
294. Rufous-tailed Jacamar – Galbula ruficauda; La Selva, 9-Jan
295. Prong-billed Barbet – Semnornis frantzii; Poas area, 27-Jan
296. Red-headed Barbet – Eubucco bourcierii; Quebrada Gonzalez, 3-August
297. Keel-billed Toucan – Ramphastos sulfuratus; Tirimbina, 9-Jan
298. Yellow-throated Toucan – Ramphastos ambiguus; Tirimbina, 9-Jan
299. Collared Aracari – Pteroglossus torquatus; Tirimbina, 9-Jan
300. Fiery-billed Aracari – Pteroglossosus frantzii; Carara area, 13-Feb
301. Northern Emerald Toucanet – Aulacorhynchus prasinus; Alto Palomo, 6-Feb
302. Olivaceous Piculet – Picumnus olivaceus; La Gamba, 30-Dec
303. Acorn Woodpecker – Melanerpes formicivorus; Poas area, 27-Jan
304. Hoffmann’s Woodpecker – Melanerpes hoffmannii; San Joaquin de Heredia, 1-Jan
305. Red-crowned Woodpecker – Melanerpes rubricapillus; Ciudad Neily area, 3-Feb
306. Black-cheeked Woodpecker – Melanerpes pucherani; Tirimbina, 9-Jan
307. Golden-naped Woodpecker – Melanerpes chrysauchen; Mirador de Osa, 28-Dec
308. Golden-olive Woodpecker – Colaptes rubiginosus; Providencia area, 18-Feb
309. Hairy Woodpecker – Dryobates villosus; Varablanca, 9-Jan
310. Smoky-brown Woodpecker – Dryobates fumigatus; Rio Negro area northern flank Rincon de la Vieja, 24-March
311. Red-rumped Woodpecker – Dryobates kirkii; Ciudad Neily, 28-Dec 
312. Rufous-winged Woodpecker – Piculus simplex; Tirimbina, 9-Jan
313. Cinnamon Woodpecker – Celeus loricatus; Rio Negro area northern flank Rincon de la Vieja, 24-March
314. Chestnut-colored Woodpecker – Celeus castaneus; Tortuguero National Park area, 7-April 
315. Lineated Woodpecker – Dryocopus lineatus; San Joaquin de Heredia, 1-Jan
316. Pale-billed Woodpecker – Campephilus guatemalensis; Carara area, 13-Feb
317. Laughing Falcon – Herpetotheres cachinnans; Tirimbina, 9-Jan
318. Crested Caracara – Caracara cheriway; San Joaquin de Heredia, 1-Jan
319. Yellow-headed Caracara – Milvago chimachima; San Joaquin de Heredia, 1-Jan
320. Barred Forest-Falcon – Micrastur ruficollis; Providencia area, 18-Feb
321. Collared Forest-Falcon – Micrastur semitorquatus; Tarcoles, 3-Feb
322. Bat Falcon – Falco rufigularis; Tirimbina, 9-Jan
323. American Kestrel – Falco sparverius; Ceiba de Orotina, 19-Jan
324. Merlin – Falco columbarius; Poas area, 27-Jan
325. Peregrine Falcon – Falco peregrinus; San Joaquin de Heredia, 15-Jan
326. Sulphur-winged Parakeet – Pyrrhura hoffmanni; Providencia area, 18-Feb
327. Olive-throated Parakeet – Eupsittula nana; Tirimbina, 9-Jan
328. Orange-fronted Parakeet – Eupsittula canicularis; Ceiba de Orotina, 19-Jan
329. Brown-throated Parakeet – Eupsittula pertinax; Ciudad Neily area, 3-Feb
330. Scarlet Macaw – Ara macao; Tirimbina, 9-Jan
331. Great Green Macaw – Ara ambiguus; Tirimbina, 9-Jan
332. Crimson-fronted Parakeet – Psittacara finschi; San Joaquin de Heredia, 1-Jan
333. Barred Parakeet – Bolborhynchus lineola; Providencia area, 18-Feb
334. Orange-chinned Parakeet – Brotogeris jugularis; San Joaquin de Heredia, 1-Jan
335. Brown-hooded Parrot – Pyrilia haematotis; Tirimbina, 9-Jan
336. White-crowned Parrot – Pionus senilis; San Joaquin de Heredia, 1-Jan
337. Blue-headed Parrot – Pionus menstruus; Ciudad Neily area, 3-Feb
338. Red-fronted Parrotlet – Toiuit costaricensis; Pocosol Research Station, 26-July
339. White-fronted Parrot – Amazona albifrons; San Joaquin de Heredia, 1-Jan
340. Red-lored Parrot – Amazona autumnalis; Tirimbina, 9-Jan
341. Mealy Parrot – Amazona farinosa; Ciudad Neily area, 3-Feb
342. Yellow-naped Parrot – Amazona auropalliata; Guacalillo, 30-Jan
343. Russet Antshrike – Thamnistes anabatinus; Quebrada Gonzalez, 15-March
344. Fasciated Antshrike – Cymbilaimus lineatus; Tirimbina, 9-Jan
345. Great Antshrike – Taraba major; Ciudad Neily area, 3-Feb
346. Black-crowned Antshrike – Thamnophilus atrinucha; Tirimbina, 9-Jan
347. Black-hooded Antshrike – Thamnophilus bridgesi; Carara area, 13-Feb
348. Barred Antshrike – Thamnophilus doliatus; San Joaquin de Heredia, 1-Jan
349. Plain Antvireo – Dysithamnus mentalis; Pocosol Research Station, 26-July
350. Streak-crowned Antvireo – Dysithamnus striaticeps; Tirimbina, 9-Jan
351. Dot-winged Antwren – Microrhopias quixensis; Centro Manu, 21-Nov
352. White-flanked Antwren – Myrmotherula axillaris; Tirimbina, 9-Jan
353. Slaty Antwren – Myrmotherula schisticolor; Mi Cafecito, 16-May
354. Checker-throated Antwren – Epinecrophylla fulviventris; Tirimbina, 9-Jan
355. Dull-mantled Antbird – Myrmeciza laemosticta; Quebrada Gonzalez, 15-March
356. Chestnut-backed Antbird – Myrmeciza exsul; Tirimbina, 9-Jan
357. Zeledon’s Antbird – Myrmeciza zeledoni; Socorro, 16-May
358. Bare-crowned Antbird – Gymnocichla nudiceps; Cano Negro, 4-Dec
359. Spotted Antbird – Hylophylax naevioides; Tirimbina, 9-Jan
360. Bicolored Antbird – Gymnopythis bicolor; Quebrada Gonzalez, 15-March
361. Ocellated Antbird – Phaenostictus mcleannani; Rio Negro area northern flank Rincon de la Vieja, 24-March 
362. Dusky Antbird – Cercomacroides tyrannina; Tirimbina, 9-Jan
363. Streak-chested Antpitta – Hylopezus perspicillatus; Quebrada Gonzalez, 3-August
364. Thicket Antpitta – Hylopezus dives; Rio Negro area northern flank Rincon de la Vieja, 24-March 
365. Black-headed Antthrush – Formicarius nigricapillus; Pocosol Research Station, 26-July
366. Black-faced Antthrush – Formicarius analis; Carara, 8-May
367. Silvery-fronted Tapaculo – Scytalopus argentifrons; Varablanca, 9-Jan
368. Tawny-throated Leaftosser – Sclerurus mexicanus; above La Paz Waterfall Gardens, 20-June
369. Scaly-throated Leaftosser – Sclererus guatimalensis; Pocosol Research Station, 27-July
370. Plain Xenops – Xenops minutus; Tirimbina, 9-Jan
371. Spotted Barbtail – Premnoplex brunnescens; Poas area, 23-Jan
372. Wedge-billed Woodcreeper – Glyphorynchus spirurus; Tirimbina, 9-Jan
373. Olivaceous Woodcreeper – Sittasomus griseicapillus; Poas area, 27-Jan
374. Northern Barred-Woodcreeper – Dendrocolaptes sanctithomae; Tirimbina, 9-Jan
375. Ruddy Woodcreeper – Dendrocincla homochroa; Rincon de la Vieja, 27-Feb
376. Plain-brown Woodcreeper – Dendrocincla fuliginosa; Rio Negro area northern flank Rincon de la Vieja, 24-March 
377. Tawny-winged Woodcreeper – Dendrocimcla anabatina; Mirador de Osa, 30-Dec
378. Black-striped Woodcreeper – Xiphorhynchus lachrymosus; Tortuguero National Park area, 7-April
379. Cocoa Woodcreeper – Xiphorhynchus susurrans; Tirimbina, 9-Jan
380. Ivory-billed Woodcreeper– Xiphorhynchus flavigaster; Rincon de la Vieja, 27-Feb
381. Spotted Woodcreeper – Xiphorhynchus erthropygius; Valle Quetzales, 2-March
382. Streak-headed Woodcreeper – Lepidocolaptes souleyetii; Tirimbina, 9-Jan
383. Spot-crowned Woodcreeper – Lepidocolaptes affinis; Poas area, 27-Jan
384. Buffy Tuftedcheek – Pseudocolaptes lawrencii; Poas area, 27-Jan
385. Streak-breasted Treehunter – Thripadectes rufobrunneus; Poas area, 27-Jan
386. Buff-throated Foliage-gleaner – Automolus ochrolaemus; Sarapiqui, 16-May
387. Chiriqui Foliage-gleaner – Automolus exsertus; Carara area, 13-Feb
388. Striped Woodhaunter – Automolus subulatus; Quebrada Gonzalez, 15-March
389. Lineated Foliage-gleaner – Syndactyla subalaris; Providencia area, 18-Feb
390. Ruddy Treerunner – Margarornis rubiginosus; Poas area, 27-Jan
391. Red-faced Spinetail – Cranioleuca erythrops; Poas area, 27-Jan
392. Pale-breasted Spinetail – Synallaxis albescens; Ciudad Neily area, 3-Feb
393. Slaty Spinetail – Synallaxis brachyura; Tortuguero National Park area, 14-April
394. Long-tailed Manakin – Chiroxiphia linearis; Ceiba de Orotina, 19-Jan
395. White-ruffed Manakin – Corapipo altera; Pocosol Research Station, 25-July
396. White-collared Manakin – Manacus candei; Tirimbina, 9-Jan
397. Orange-collared Manakin– Manacus aurantiachus; Ciudad Neily, 28-Dec
398. White-crowned Manakin – Dixiphia pipra; El Copal, 30-July
399. Blue-crowned Manakin – Lepidothrix coronata; Carara National Park, 23-Oct
400. Red-capped Manakin – Ceratopipra mentalis; Rio Negro area northern flank Rincon de la Vieja, 24-March
401. Bare-necked Umbrellabird – Cephalopterus gabricollis; Centro Manu, 22-Oct
402. Purple-throated Fruitcrow – Querula purpurata; Tortuguero National Park area, 7-April
403. Turquoise Cotinga – Cotinga ridgwayi; Rincon de Osa, 29-Dec
404. Yellow-billed Cotinga – Carpodectes antoniae; Rincon de Osa, 29-Dec
405. Snowy Cotinga – Carpodectes nitidus; Rio Negro area northern flank Rincon de la Vieja, 24-March 
406. Three-wattled Bellbird – Procnias tricarunculatus; Road to Manuel Brenes, 25-July
407. Rufous Piha – Lipaugus unirufus; Centro Manu, 22-Oct
408. Northern Schiffornis – Schiffornis veraepacis; Rio Negro area northern flank Rincon de la Vieja, 24-March 
409. Black-crowned Tityra – Tityra inquisitor; Rio Negro area northern flank Rincon de la Vieja, 24-March 
410. Masked Tityra – Tityra semifasciata; San Joaquin de Heredia, 1-Jan
411. Cinnamon Becard – Pachyramphus cinnamomeus; Pozo Azul, 28-March
412. Barred Becard – Pachyramphus versicolor; Poas area, 27-Jan
413. Rose-throated Becard – Pachyramphus aglaiae; Ceiba de Orotina, 19-Jan
414. Black-and-white Becard – Pachyramphus albogriseus; San Rafael de Varablanca, 26-Dec
415. White-winged Becard – Pachyramphus polychopterus; Ciudad Neily area, 3-Feb
416. Royal Flycatcher – Onychorhynchus coronatus; Cano Negro, 4-Dec
417. Sulphur-rumped Flycatcher – Myiobius sulphureigypus; Carara area, 13-Feb
418. Ruddy-tailed Flycatcher – Terenotriccus erythrurus; Quebrada Gonzalez, 15-March
419. Stub-tailed Spadebill – Platyrinchus cancrominus; Valle Quetzales, 2-March
420. Olive-striped Flycatcher – Mionectes olivaceus; Cinchona, 6-Feb
421. Ochre-bellied Flycatcher – Mionectes oleagineus; Tirimbina, 9-Jan
422. Slaty-capped Flycatcher – Leptopogon superciliaris; Road to Manuel Brenes, 25-July
423. Rufous-browed Tyrannulet – Phylloscartes superciliaris; Road to Manuel Brenes, 25-July
424. Torrent Tyrannulet – Serpophaga cinerea; Pocosol Research Station, 25-July
425. Rough-legged (White-fronted) Tyrannulet – Phyllomyias burmeisteri; Irazu Volcano, 30-July
426. Northern Bentbill – Oncostoma cinereigulare; Carara area, 13-Feb
427. Slate-headed Tody-Flycatcher – Poecilotriccus sylvia; Malpais, 19-April 
428. Common Tody-Flycatcher –  Todirostrum cinereum; San Joaquin de Heredia, 1-Jan
429. Black-headed Tody-Flycatcher – Todirostrum nigriceps; Union de Guapiles, 15-March
430. Yellow-margined Flycatcher – Tolmomyias assimilis; Tirimbina, 9-Jan
431. Yellow-olive Flycatcher – Tolmomyias sulphurescens; San Joaquin de Heredia, 1-Jan
432. Eye-ringed Flatbill – Rhynchocyclus brevirostris; near Jaco, 4-April
433. Scale-crested Pygmy-Tyrant – Lophotriccus pileatus; Cinchona, 6-Feb
434. Black-capped Pygmy-Tyrant – Myiornis atricapillus; Tirimbina, 9-Jan
435. Northern Beardless-Tyrannulet – Camptostoma imberbe; San Joaquin de Heredia, 1-Jan
436. Southern Beardless-Tyrannulet – Camptostoma obsoletum; Carara area, 13-Feb
437. Brown-capped Tyrannulet – Ornithion brunneicapillus; Tortuguero National Park area, 7-April
438. Yellow-bellied Tyrannulet – Ornithion semiflavum; Cano Negro, 4-Dec
439. Yellow-crowned Tyrannulet – Tyrannulus elatus; Carara area, 13-Feb
440. Mistletoe Tyrannulet – Zimmerius parvus; Tirimbina, 9-Jan
441. Yellow Tyrannulet – Capsiempis flaveola; Jaco area, 20-Jan
442. Greenish Elaenia – Myiopagis viridicata; Ceiba de Orotina, 19-Jan
443. Yellow-bellied Elaenia – Elaenia flavigaster; San Joaquin de Heredia, 1-Jan
444. Lesser Elaenia – Elaenia chiriquensis; Bosque de Nino, 6-March
445. Mountain Elaenia – Elaenia frantzii; Varablanca area, 9-Jan
446. Bright-rumped Attila – Attila spadiceus; Tirimbina, 9-Jan
447. Rufous Mourner – Rhytipterna holerythra; La Selva area, 9-Jan
448. Dusky-capped Flycatcher – Myiarchus tuberculifer; Tirimbina, 9-Jan
449. Great Crested Flycatcher – Myiarchus crinitus; San Joaquin de Heredia, 1-Jan
450. Nutting’s Flycatcher – Myiarchus nuttingi; Carara area, 13-Feb
451. Brown-crested Flyctcher – Myiarchus tyrannulus; Ceiba de Orotina, 19-Jan
452. Panama Flycatcher – Myiarchus panamensis; Punta Morales, 23-March 
453. Great Kiskadee – Pitangus sulphuratus; San Joaquin de Heredia, 1-Jan
454. Boat-billed Flycatcher – Megarynchus pitangua; San Joaquin de Heredia, 1-Jan
455. Gray-capped Flycatcher – Myiozetetes granadensis; Tirimbina, 9-Jan
456. Social Flycatcher – Myiozetetes similis; San Joaquin de Heredia, 1-Jan
457. Rusty-margined Flycatcher – Myiozetetes cayanensis; Ciudad Neily area, 3-Feb
458. White-ringed Flycatcher – Conopius albovittatus; Tortuguero National Park area, 7-April
459. Golden-bellied Flycatcher – Myiodynastes hemichrysus; Braulio Carillo, 15-March
460. Streaked Flycatcher – Myiodynastes maculatus; Guacalillo, 30-Jan
461. Sulphur-bellied Flycatcher – Myiodynastes luteiventris; Valle Quetzales, 2-March
462. Piratic Flycatcher – Legatus leucophaius; Ciudad Neily area, 3-Feb
463. Gray Kingbird – Tyrannus dominicensis; Manzanillo, 9-Oct
464. Tropical Kingbird – Tyrannus melancholicus; San Joaquin de Heredia, 1-Jan
465. Eastern Kingbird – Tyrannus tyrannus; Pozo Azul, 28-March
466. Western Kingbird – Tyrannus verticalis; Ceiba de Orotina, 19-Jan
467. Scissor-tailed Flycatcher – Tyrannus forficatus; Ciudad Neily area, 3-Feb
468. Fork-tailed Flycatcher – Tyrannus savana; Ciudad Neily area, 3-Feb
469. Tropical Pewee – Contopus cinereus; Tirimbina, 9-Jan
470. Western Wood-Pewee – Contopus sordidulus; Barva, 21-April
471. Eastern Wood-Pewee – Contopus virens; Barva, 21-April
472. Dark Pewee – Contopus lugubris; Cinchona area, 9-Jan
473. Ochraceous Pewee – Contopus ochraceus; Providencia area, 18-Feb
474. Olive-sided Flycatcher – Contopus cooperi; Rio Negro area northern flank Rincon de la Vieja, 24-March 
475. Tufted Flycatcher – Mitrephanes phaeocercus; Poas area, 27-Jan
476. Tawny-chested Flycatcher – Aphanotriccus capitalis; El Copal, 29-July
477. Least Flycatcher – Empidonax minimus; San Joaquin de Heredia, 7-Oct
478. Yellow-bellied Flycatcher – Empidonax flaviventris; Tirimbina, 9-Jan
479. Willow Flycatcher – Empidonax traillii; Ciudad Neily area, 3-Feb
480. Alder Flycatcher – Empidonax alnorum; San Joaquin de Heredia, 7-May
481. White-throated Flycatcher – Empidonax albigularis; San Miguel Lagoon, 3-Dec
482. Acadian Flycatcher – Empidonax virescens; San Joaquin de Heredia, 26-Sep
483. Yellowish Flycatcher – Empidonax flavescens; Poas area, 23-Jan
484. Black-capped Flycatcher – Empidonax atriceps; Poas area, 23-Jan
485. Black Phoebe – Sayornis nigricans; Tirimbina, 9-Jan
486. Northern Scrub Flycatcher – Sublegatis arenarum; Punta Morales, 2-March
487. Long-tailed Tyrant – Colonia colonus; Sarapiqui, 28-July
488. Green Shrike-Vireo – Vireolanius pulchellus; Quebrada Gonzalez, 15-March
489. Rufous-browed Peppershrike – Cychlarhis gujanensis; Providencia area, 18-Feb
490. Tawny-crowned Greenlet – Tunchiornis ochraceiceps; Rincon de la Vieja, 27-Feb
491. Scrub Greenlet – Hylophilus flavipes; Ciudad Neily area, 3-Feb
492. Lesser Greenlet – Pachysylvia decurtatus; Tirimbina, 9-Jan
493. Yellow-throated Vireo – Vireo flavifrons; San Joaquin de Heredia, 4-Jan
494. Yellow-winged Vireo – Vireo carmoli; Poas area, 23-Jan
495. Philadelphia Vireo – Vireo philadelphicus; San Joaquin de Heredia, 4-Jan
496. Mangrove Vireo – Vireo pallens; Punta Morales, 23-March 
497. Yellow-green Vireo – Vireo flavoviridis; Rincon de la Vieja, 27-Feb
498. Red-eyed Vireo – Vireo olivaceus; Rio Negro area northern flank Rincon de la Vieja, 24-March 
499. Brown-capped Vireo – Vireo leucophrys; Poas area, 23-Jan
500. Azure-hooded Jay – Cyanolyca cucullata; La Paz de San Ramon, 24-July
501. Brown Jay – Psilorhinus morio; San Joaquin de Heredia, 1-Jan
502. White-throated Magpie-Jay – Calocitta formosa; Guacalillo, 30-Jan
503. Purple Martin – Progne subis; Tortuguero National Park area, 7-April
504. Gray-breasted Martin – Progne chalybea; San Joaquin de Heredia, 1-Jan
505. Blue-and-white Swallow – Pygochelidon cyanoleuca; San Joaquin de Heredia, 1-Jan
506. Mangrove Swallow – Tachycineta albilinea; Carara area, 13-Feb
507. Barn Swallow – Riparia riparia, Villa Flores, 14-Sep
508. Northern Rough-winged Swallow – Stelgidopteryx serripennis; Tarcoles, 1-Feb
509. Southern Rough-winged Swallow –  Stelgidopteryx ruficollis; Tirimbina, 9-Jan
510. Violet-green Swallow – Tachycineta thalissina; Bosque de Nino, 6-March
511. Cliff Swallow – Petrochelidon pyrrhonota; Playa Hermosa, 28-Feb
512. Cave Swallow – Petrochelidon fulva; Ceiba de Orotina, 16-Oct 
513. Barn Swallow – Hirundo rustica; Ceiba de Orotina, 19-Jan
514. Grass Wren – Cistothorus platensis; Coris, 28-Dec
515. House Wren – Troglodytes aedon; San Joaquin de Heredia, 1-Jan
516. Ochraceous Wren – Troglodytes ochraceus; Poas area, 23-Jan
517. Nightingale Wren – Microcerculus philomela; Rincon de la Vieja, 27-Feb
518. Scaly-breasted Wren – Microcrculus marginatus; El Copal, 29-July
519. Band-backed Wren – Campylorhynchus zonatus; Quebrada Gonzalez, 15-March
520. Rufous-naped Wren – Campylorhynchus rufinucha; San Joaquin de Heredia, 1-Jan
521. Stripe-breasted Wren – Thryophilus pleurostictus; Tirimbina, 9-Jan
522. Canebrake Wren – Cantorchilus zeledoni; La Selva area, 9-Jan
523. Cabanis’s Wren – Cantorchilus modestus; San Joaquin de Heredia, 1-Jan
524. Isthmian Wren – Cantorchilus elutus; Ciudad Neily area, 3-Feb
525. Riverside Wren – Cantorchilus semibadius; Ciudad Neily area, 3-Feb
526. Bay Wren – Cantorchilus nigricapillus; Tirimbina, 9-Jan
527. Black-bellied Wren – Pheugopedius fachiatoventris; Ciudad Neily, 28-Dec
528. Black-throated Wren – Pheugopedius atrogularis; Rio Negro area northern flank Rincon de la Vieja, 24-March 
529. Rufous-breasted Wren – Pheugopedius rutilus; Carara area, 13-Feb
530. Spot-breasted Wren – Pheugopedius maculipectus; Cano Negro, 4-Dec
531. Banded Wren – Thryothorus pleurostictus; Ceiba de Orotina, 19-Jan
532. Rufous-and-white Wren – Thryothorus rufalbus; Carara area, 13-Feb
533. White-breasted Wood-Wren – Henicorhina leucosticta; Tirimbina, 9-Jan
534. Gray-breasted Wood-Wren – Henicorhina leucophyrs; Varablanca area, 9-Jan
535. Timberline Wren – Thryorchilus browni; Providencia area, 18-Feb
536. Song Wren – Cyphorhinus phaeocephalus; Rio Negro area northern flank Rincon de la Vieja, 24-March
537. Tawny-faced Gnatwren – Microbates cinereriventris; Road to Manuel Brenes, 25-July
538. Long-billed Gnatwren – Ramphocaenus melanurus; La Selva area, 9-Jan
539. White-lored Gnatcatcher – Polioptila albiloris; Guacalillo, 30-Jan
540. Tropical Gnatcatcher – Polioptila plumbea; Tirimbina, 9-Jan
541. American Dipper – Cinclus mexicanus; Providencia area, 18-Feb
542. Black-faced Solitaire – Myadestes melanops; Poas area, 23-Jan
543. Slaty-backed Nightingale-Thrush – Catharus fuscater; Providencia area, 18-Feb
544. Black-billed Nightingale-Thrush – Catharus gracilirostris; Poas area, 23-Jan
545. Ruddy-capped Nightingale-Thrush – Catharus frantzii; Poas area, 23-Jan
546. Orange-billed Nightingale-Thrush – Catharus aurantiirostris; Poas area, 23-Jan
547. Black-headed Nightingale-Thrush – Catharus mexicanus; near Cinchona, 6-Feb
548. Swainson’s Thrush – Catharus ustulatus; Providencia area, 18-Feb
549. Gray-cheeked Thrush – Catharus minimus; San Joaquin de Flores, 13-Oct
550. Veery – Catharus fuscenscens; San Joaquin de Flores, 10-Oct
551. Wood Thrush – Hylocichla mustelina; Cops Place, 22-Oct
552. Sooty Thrush – Turdus nigriscens; Poas area, 23-Jan
553. Mountain Thrush – Turdus plebejus; Poas area, 23-Jan
554. White-throated Thrush – Turdus assimilis; Cinchona, 6-Feb
555. Pale-vented Thrush – Turdus obsoletus; Rio Negro area northern flank Rincon de la Vieja, 24-March 
556. Clay-colored Thrush – Turdus grayi; San Joaquin de Heredia, 1-Jan
557. Tropical Mockingbird – Mimus gilvus; San Joaquin de Heredia, 15-Jan
558. Cedar Waxwing – Bombycilla cedrorum; Barva, 21-April
559. Black-and-yellow Silky-Flycatcher – Phainoptila melanoxantha; Poas area, 23-Jan
560. Long-tailed Silky-Flycatcher – Ptiliogonys caudatus ; Poas area, 23-Jan
561. Tricolored Munia – Lonchura malacca; Las Trancas, 10-December 
562. House Sparrow – Passer domesticus; San Joaquin de Heredia, 1-Jan
563. Golden-browed Chlorophonia – Chlorophonia callophrys; Poas area, 27-Jan
564. Elegant Euphonia – Euphonia elegantissima; Providencia area, 18-Feb
565. Scrub Euphonia – Euphonia affinis; La Garita, 16-Jan
566. Yellow-crowned Euphonia – Euphonia luteicapilla; Tirimbina, 9-Jan
567. Tawny-capped Euphonia – Euphonia anneae; Quebrada Gonzalez, 15-March
568. Olive-backed Euphonia – Euphonia gouldi; Tirimbina, 9-Jan
569. Spot-crowned Euphonia – Euphonia ; Rincon de Osa, 29-Dec
570. Yellow-throated Euphonia – Euphonia hirundinacea; San Joaquin de Heredia, 4-Jan
571. Thick-billed Euphonia – Euphonia laniirostris; Ciudad Neily area, 3-Feb
572. White-vented Euphonia – Euphonia minuta; El Copal, 29-July
573. Yellow-bellied Siskin – Spinus xanthogastrus; Poas area, 27-Jan
574. Lesser Goldfinch – Spinus psaltria; San Joaquin de Heredia, 17-Jan
575. Yellow-thighed Brushfinch – Atlapetes tibialis; Poas area, 23-Jan
576. White-naped Brushfinch – Atlapetes albinucha; Poas area, 16-August
577. Large-footed Finch – Pezopetes capitalis ; Poas area, 23-Jan
578. Chestnut-capped Brushfinch – Arremons brunneinucha; Poas area, 23-Jan
579. Volcano Junco – Junco vulcani; Irazu, 25-June
580. Common Chlorospingus – Chlorospingus flavopectus; Cinchona area, 9-Jan
581. Sooty-capped Chlorospingus – Chloropsingus pileatus; Poas area, 23-Jan
582. Ashy-throated Chlorospingus – Chlorospingus canigularis; Quebrada Gonzalez, 15-March
583. Cabanis’s Ground-Sparrow – Melozone cabanisi; San Joaquin de Heredia, 1-April
584. White-eared Ground-Sparrow – Melozone leucotis; San Joaquin de Heredia, 1-Jan
585. Black-striped Sparrow –  Arremonops conirostris; Tirimbina, 9-Jan
586. Olive Sparrow – Arremonops rufivirgatus; El Rodeo, 1-April
587. Orange-billed Sparrow – Arremon aurantiirostris; Tirimbina, 9-Jan
588. Sooty-faced Finch – Arremon crassirostris; Braulio Carrillo, 5-March
589. Stripe-headed Sparrow – Peucaea ruficauda; Ceiba de Orotina, 19-Jan
590. Rufous-collared Sparrow – Zonotrichia capensis; San Joaquin de Heredia, 1-Jan
591. Lark Sparrow – Chondestes grammacus; Bagaces, 10-December 
592. Grasshopper Sparrow – Ammodramus savannarum; Ceiba de Orotina, 19-Jan
593. Wrenthrush – Zeledonia coronata; Poas area, 27-Jan
594. Yellow-breasted Chat – Icteria virens; Ciudad Neily, 28-Dec
595. Yellow-billed Cacique – Ablycercus holosericeus; Providencia area, 18-Feb
596. Scarlet-rumped Cacique – Cacicus uropygialis; Quebrada Gonzalez, 15-March
597. Eastern Meadowlark – Sturnella magna; San Joaquin de Heredia, 4-Jan
598. Red-breasted Meadowlark – Sturnella militaris; Ciudad Neily area, 3-Feb
599. Chestnut-headed Oropendola – Psarcolius wagleri; Tirimbina, 9-Jan
600. Crested Oropendola – Psarcolius decumanus; Ciudad Neily area, 3-Feb
601. Montezuma Oropendola – Psarcolius Oropendola; Tirimbina, 9-Jan
602. Yellow-tailed Oriole – Icterus mesomelas; Cano Negro, 4-Dec
603. Streak-backed Oriole – Icterus pustulatus; Guacalillo, 30-Jan
604. Black-cowled Oriole – Icterus prosthemelas; Tirimbina, 9-Jan
605. Orchard Oriole – Icterus spurius; San Joaquin de Heredia, 15-Jan
606. Baltimore Oriole – Icterus galbula; San Joaquin de Heredia, 1-Jan
607. Red-winged Blackbird – Agelaius phoeniceus; Tirimbina, 9-Jan
608. Shiny Cowbird – Molothrus bonariensis; Tirimbina, 9-Jan
609. Bronzed Cowbird – Molothrus aeneus; Tirimbina, 9-Jan
610. Giant Cowbird – Molothrus oryzivorus; San Joaquin de Heredia, 1-Jan
611. Melodious Blackbird – Dives dives; San Joaquin de Heredia, 1-Jan
612. Nicaraguan Grackle – Quiscalus nicaraguensis; Cano Negro, 4-Dec
613. Great-tailed Grackle – Quiscalus mexicanus; San Joaquin de Heredia, 1-Jan
614. Ovenbird – Seirus aurocapilla; Bosque de Nino, 6-March
615. Louisiana Waterthrush – Parkesia motacilla; Poas area, 23-Jan
616. Northern Waterthrush – Parkesia noveboracensis; Guacalillo, 30-Jan
617. Blue-winged Warbler – Vermivora cyanoptera; Cano Negro, 4-Dec
618. Golden-winged Warbler – Vermivora chrysoptera; Poas area, 27-Jan
619. Worm-eating Warbler– Helmitheros vermivorum; Rincon de la Vieja, 28-Feb
620. Black-and-white Warbler – Mniotilta varia; Tirimbina, 9-Jan
621. Tennessee Warbler – Leiothlypis peregrina; San Joaquin de Heredia, 1-Jan
622. Prothonotary Warbler – Protonotaria citrea; Guacalillo, 30-Jan
623. Flame-throated Warbler – Oreothlypis gutturalis; Poas area, 23-Jan
624. Gray-crowned Yellowthroat – Geothlypis poliocephala; La Selva area, 9-Jan
625. Mourning Warbler – Geothlypis philadelphia; La Selva area, 9-Jan
626. Kentucky Warbler – Geothlypis formosa; La Selva area, 9-Jan
627. Olive-crowned Yellowthroat – Geothlypis semiflava; Tortuguero National Park area, 7-April
628. Yellow Warbler – Setophaga petechia; San Joaquin de Heredia, 1-Jan
629. Chestnut-sided Warbler – Setophaga pensylvanica; Tirimbina, 9-Jan
630. Hooded Warbler – Setophaga citrina; Cano Negro, 4-Dec
631. Blackpoll Warbler – Setophaga striata; Hotel Buena Vista, 21-April
632. American Redstart – Setophaga ruticilla; San Joaquin de Heredia, 21-Feb
633. Bay-breasted Warbler – Setophaga castanea; Quebrada Gonzalez, 15-March
634. Cerulean Warbler – Setophaga cerulea; San Joaquin de Heredia, 17-Sep
635. Tropical Parula –  Setophaga pitiayumi; Cinchona area, 9-Jan
636. Townsend’s Warbler – Setophaga townsendi; Bosque de Nino, 6-March
637. Black-throated Green Warbler – Setophaga virens; Poas area, 23-Jan
638. Blackburnian Warbler – Setophaga fusca; Poas area, 27-Jan
639. Slate-throated Redstart – Myioborus miniatus; Varablanca, 9-Jan
640. Collared Redstart – Myioborus torquatus; Poas area, 23-Jan
641. Buff-rumped Warbler – Myiothlypis fulvicauda; Tirimbina, 9-Jan
642. Black-cheeked Warbler – Basileuterus melanogenys; Poas area, 27-Jan
643. Rufous-capped Warbler – Basileuterus rufifrons; San Joaquin de Heredia, 1-Jan
644. Golden-crowned Warbler – Basileuturus culicivorus; Rincon de la Vieja, 27-Feb
645. Costa Rican Warbler – Basileuturus melanotisr; Poas area, 27-Jan
646. Canada Warbler – Cardellina canadensis; San Joaquin de Heredia, 16-Sep
647. Wilson’s Warbler – Cardellina pusilla; Poas area, 23-Jan
648. Dusky-faced Tanager – Mitrospingus cassinii; Quebrada Gonzalez, 15-March
649. Flame-colored Tanager – Piranga bidentata; Poas area, 27-Jan
650. White-winged Tanager – Piranga leucoptera; Providencia area, 18-Feb
651. Hepatic Tanager – Piranga flava; Rio Negro area northern flank Rincon de la Vieja, 24-March 
652. Western Tanager – Piranga ludovociana; Guacalillo, 30-Jan
653. Scarlet Tanager – Piranga olivacea; Pozo Azul, 28-March
654. Summer Tanager – Piranga rubra; San Joaquin de Heredia, 1-Jan
655. Red-crowned Ant-Tanager – Habia rubica; San Joaquin de Heredia, 27-Jan
656. Red-throated Ant-Tanager – Habia fuscicauda; Rio Negro area northern flank Rincon de la Vieja, 24-March 
657. Carmiol’s Tanager – Chlorothraupi carmioli; Quebrada Gonzalez, 15-March
658. Black-faced Grosbeak – Caryothraustes poliogaster; Quebrada Gonzalez, 15-March
659. Rose-breasted Grosbeak – Pheucticus ludovicianus; San Joaquin de Heredia, 10-Jan
660. Black-thighed Grosbeak – Pheucticus tibialis; Poas area, 23-Jan
661. Blue-black Grosbeak – Cyanocompsa cyanoides; Tirimbina, 9-Jan
662. Blue Grosbeak – Passerina caerulea; San Joaquin de Heredia, 10-Jan
663. Indigo Bunting – Passerina cyanea; near Jaco, 4-April
664. Painted Bunting – Passerina ciris; Raptor Ridge; San Joaquin de Heredia, 10-Jan
665. Dickcissel – Spiza americana; Ceiba de Orotina, 19-Jan
666. Blue-and-gold Tanager – Bangsia arcaei; Quebrada Gonzalez, 15-March
667. Speckled Tanager – Tanagara guttata; Road to Manuel Brenes, 25-July
668. Golden-hooded Tanager –  Stilpnia larvata; Tirimbina, 9-Jan
669. Emerald Tanager – Tangara florida; Quebrada Gonzalez, 15-March
670. Bay-headed Tanager – Tangara gyrola; Providencia area, 18-Feb
671. Spangle-cheeked Tanager – Tangara dowii; Poas area, 23-Jan
672. Silver-throated Tanager – Tangara icterocephala; Poas area, 23-Jan
673. Plain-colored Tanager – Tangara inornata; Tortuguero National Park area, 7-April
674. Black-and-yellow Tanager – Chrysothlypis chrysomelas; Quebrada Gonzalez, 15-March
675. Blue-gray Tanager – Thraupis episcopus; San Joaquin de Heredia, 1-Jan
676. Palm Tanager – Thraupis palmarum; Tirimbina, 9-Jan
677. White-lined Tanager – Tachyphonus rufus; Sarapiqui, 17-May
678. Tawny-crested Tanager – Tachyphonus delattrii; Quebrada Gonzalez, 15-March
679. White-shouldered Tanager – Tachyphonus luctuosus; Tirimbina, 9-Jan
680. White-throated Shrike-Tanager – Lanio leucothorax; Quebrada Gonzalez, 15-March
681. Scarlet-rumped Tanager – Ramphocelus passerinii; Tirimbina, 9-Jan
682. Crimson-collared Tanager – Ramphocelus sanguinolentus; Tirimbina, 9-Jan
683. Gray-headed Tanager – Eucometis penicillata; Rincon de la Vieja, 28-Feb
684. Blue-black Grassquit – Volatinia jacarina; San Joaquin de Heredia, 10-Jan
685. Slaty Flowerpiercer – Diglossa plumbea; Varablanca area, 9-Jan
686. Green Honeycreeper – Chlorophanes spiza; Tirimbina, 9-Jan
687. Shining Honeycreeper – Cyanerpes lucidus; Tirimbina, 9-Jan
688. Red-legged Honeycreeper – Cyanerpes cyaneus; Ciudad Neily area, 3-Feb
689. Blue Dacnis – Dacnis cayana; Tirimbina, 9-Jan
690. Scarlet-thighed Dacnis – Dacnis venusta; Providencia area, 18-Feb
691. Bananaquit – Coereba flaveola; Tirimbina, 9-Jan
692. Peg-billed Finch – Ancathidops bairdi; Providencia area, 18-Feb
693. Yellow-faced Grassquit – Tiaris olvaceus; San Joaquin de Heredia, 10-Jan
694. Nicaraguan Seed-Finch – Sporophila nuttingi; La Selva area, 20-June
695. Thick-billed Seed-Finch – Sporophila funerea; Ciudad Neily area, 3-Feb
696. Variable Seedeater – Sporophila corvina; Tirimbina, 9-Jan
697. Morelet’s Seedeater – Sporophila morelleti; La Selva area, 9-Jan
698. Yellow-bellied Seedeater – Sporophila nigricollis; near San Joaquin de Heredia, 3-August
699. Slate-colored Seedeater – Sporophila schistacea; near Jaco, 4-April
700. Slate-colored Grosbeak – Saltator grossus; Sarapiqui, 28-July
701. Black-headed Saltator – Saltator atriceps; Santa Barbara area, 15-Feb
702. Buff-throated Saltator – Saltator maximus; Tirimbina, 9-Jan
703. Grayish Saltator – Saltator coerulescens; San Joaquin de Heredia, 10-Jan
704. Streaked Saltator – Saltator striatipectus; Ciudad Neily area, 3-Feb