An interesting report from John Thaxton of Adirondack Dispatches. John certainly seems to know his birds and he describes a Ferruginous Hawk well but seeing one in Vermont would be beyond absolutely amazing and buteos are known to have a variety of plumages. The comment thread is interesting as well. Thoughts?
Maybe this bird escaped?
I sighted a single gyrfalcon in Benson Vermont in March 2011 and eight of them flying together in a kettle over Tinmouth Pond in Tinmouth Vermont April 25, 2011
@Rob Barker: No, no you did not.