Motmot

Black Tern vs Sandwich Tern

Chlidonias niger versus Thalasseus sandvicensis

Practice

Play a quiz with Black Tern and Sandwich Tern

Black Tern (Chlidonias niger) Black Tern
Sandwich Tern (Thalasseus sandvicensis) Sandwich Tern

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Black Tern · Sandwich Tern · My Tricky Birds