Birdr

Slender-billed Gull vs Brown-headed Gull

Chroicocephalus genei versus Chroicocephalus brunnicephalus

Practice

Play a quiz with Slender-billed Gull and Brown-headed Gull

Slender-billed Gull (Chroicocephalus genei) Slender-billed Gull
Brown-headed Gull (Chroicocephalus brunnicephalus) Brown-headed Gull

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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Slender-billed Gull · Brown-headed Gull · My Tricky Birds