Birdr

Ring-billed Gull vs Cory's Shearwater

Larus delawarensis versus Calonectris borealis

Practice

Play a quiz with Ring-billed Gull and Cory's Shearwater

Ring-billed Gull (Larus delawarensis) Ring-billed Gull
Cory's Shearwater (Calonectris borealis) Cory's 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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Ring-billed Gull · Cory's Shearwater · My Tricky Birds