Birdr

Common Tern vs Sandwich Tern

Sterna hirundo versus Thalasseus sandvicensis

Practice

Play a quiz with Common Tern and Sandwich Tern

Common Tern (Sterna hirundo) Common Tern
Sandwich Tern (Thalasseus sandvicensis) Sandwich Tern

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Common Tern · Sandwich Tern · My Tricky Birds