Motmot

Black-headed Gull vs Aleutian Tern

Chroicocephalus ridibundus versus Onychoprion aleuticus

Practice

Play a quiz with Black-headed Gull and Aleutian Tern

Black-headed Gull (Chroicocephalus ridibundus) Black-headed Gull
Aleutian Tern (Onychoprion aleuticus) Aleutian Tern

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Black-headed Gull · Aleutian Tern · My Tricky Birds