Birdr

Black-tailed Gull vs Herring Gull

Larus crassirostris versus Larus argentatus

Practice

Play a quiz with Black-tailed Gull and Herring Gull

Black-tailed Gull (Larus crassirostris) Black-tailed Gull
Herring Gull (Larus argentatus) Herring Gull

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Black-tailed Gull · Herring Gull · My Tricky Birds