Birdr

Olive-sided Flycatcher vs Acadian Flycatcher

Contopus cooperi versus Empidonax virescens

Practice

Play a quiz with Olive-sided Flycatcher and Acadian Flycatcher

Olive-sided Flycatcher (Contopus cooperi) Olive-sided Flycatcher
Acadian Flycatcher (Empidonax virescens) Acadian Flycatcher

Media

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These two are often mixed up in quizzes. Look at the photos, then practise the pair until the field marks stick.

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Olive-sided Flycatcher · Acadian Flycatcher · My Tricky Birds