Birdr

Sandwich Tern vs Black-throated Diver

Thalasseus sandvicensis versus Gavia arctica

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Sandwich Tern (Thalasseus sandvicensis) Sandwich Tern
Black-throated Diver (Gavia arctica) Black-throated Diver

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Sandwich Tern · Black-throated Diver · My Tricky Birds