Birdr

Black Oystercatcher vs Purple Martin

Haematopus bachmani versus Progne subis

Practice

Play a quiz with Black Oystercatcher and Purple Martin

Black Oystercatcher (Haematopus bachmani) Black Oystercatcher
Purple Martin (Progne subis) Purple Martin

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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Black Oystercatcher · Purple Martin · My Tricky Birds