Birdr

Rock Sandpiper vs Least Storm-Petrel

Calidris ptilocnemis versus Hydrobates microsoma

Practice

Play a quiz with Rock Sandpiper and Least Storm-Petrel

Rock Sandpiper (Calidris ptilocnemis) Rock Sandpiper
Least Storm-Petrel (Hydrobates microsoma) Least Storm-Petrel

Media

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These two are often mixed up in quizzes. Look at the photos, then practise the pair until the field marks stick.

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Rock Sandpiper · Least Storm-Petrel · My Tricky Birds