Acadian Flycatcher
Empidonax virescens
Adults have olive upperparts, darker on the wings and tail, with whitish underparts; they have a white eye ring, white wing bars and a wide bill. The breast is washed with olive. The upper part of the bill is dark; the lower part is yellowish. This bird's song is an explosive peet-sa. The call is a soft peet. They also have a call similar to that of the northern flicker. A unique two-note song described as "ka-zeep" helps to identify this species. Measurements: Length: 5.5–5.9 inches (14–15 cm) Weight: 0.4–0.5 ounces (11–14 g) Wingspan: 8.7–9.1 inches (22–23 cm)
ID text from Wikipedia, CC BY-SA 4.0
Willow Flycatcher
Empidonax traillii
Adults have brown-olive upperparts, darker on the wings and tail, with whitish underparts; they have an indistinct white eye ring, white wing bars and a small bill. The breast is washed with olive-gray. The upper part of the bill is gray; the lower part is orangish.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Acadian Flycatcher and Willow Flycatcher.