The willow flycatcher is a small insect-eating, neotropical migrant bird of the tyrant flycatcher family. There are four subspecies of the willow flycatcher currently recognized, all of which breed in North America . ''Empidonax'' flycatchers are almost impossible to tell apart in the field so biologists use their songs to distinguish between them. The binomial commemorates the Scottish zoologist Thomas Stewart Traill.
Similar species: Perching Birds

By Joe Spandrusyszyn
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Uploaded Sep 7, 2015. Captured in Nature Trails, Honeoye Falls, NY 14472, USA.
comments (4)
I think it is probably empidonax Traillii.
Why, the orange beak, shape of body (minimus is rounder) and the white ring contrast. Posted 9 years ago
https://www.allaboutbirds.org/guide/spp_photos.aspx?ss=1&sppid=302&keepThis=true&TB_iframe=true&height=488&width=875
https://www.allaboutbirds.org/guide/spp_photos.aspx?spp=1&sppid=196&keepThis=true&TB_iframe=true&height=488&width=875 Posted 9 years ago