Birdr

Black-headed Gull vs Audouin's Gull

Chroicocephalus ridibundus versus Ichthyaetus audouinii

Practice

Play a quiz with Black-headed Gull and Audouin's Gull

Black-headed Gull (Chroicocephalus ridibundus) Black-headed Gull
Audouin's Gull (Ichthyaetus audouinii) Audouin's 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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Black-headed Gull · Audouin's Gull · My Tricky Birds