Birdr

Cory's Shearwater vs Sooty Shearwater

Calonectris diomedea versus Ardenna grisea

Practice

Play a quiz with Cory's Shearwater and Sooty Shearwater

Cory's Shearwater (Calonectris diomedea) Cory's Shearwater
Sooty Shearwater (Ardenna grisea) Sooty Shearwater

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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Cory's Shearwater · Sooty Shearwater · My Tricky Birds