Yellow Warbler Dendroica petechia
Toronto, Canada. May 18 2006.

A familiar species in wetland habitats over much of eastern North America Yellow Warblers actually have an extraordinarily broad distribution for a warbler species and show great geographical variation: according to the Cornell website more than 40 recognized subspecies form three general groups that range from the northern limits of shrubby habitat in Canada to northern South America.

The northern aestiva group of subspecies breeds from Alaska to Newfoundland and southern Labrador south to western South Carolina and northern Georgia, and west sporadically through the Southwest to the Pacific Coast. This form is highly migratory and winters in Central America and the West Indies south to northern Peru. There are two forms, the Mangrove Warbler (erithachorides group) and Golden Warbler (petechia group), that appear to be closely related.

In eastern North America Yellow Warblers use a variety of moist habitats including old fields; overgrown pasture; woodland edges; hedgerows; the borders of swamps, ponds, and bogs; and streamsides. In the West, most are restricted to riparian habitats, and in the Southwest these warblers have declined as this habitat type decreases. They’re very vocal on territory and their songs - often given from near the top of a tree - consist of three short notes followed by a trill, often rendered as Sweet sweet sweet, I’m so very sweet…

 

 

 

 

 

 

Yellow Warbler Dendroica petechia

All photos copyright Charlie Moores