Western And Clark’s Grebes – A Comparison

Western Grebes and Clark’s Grebes are so similar in plumage patterns and behaviors that until 1985 they were considered to be color phases of the same species – the Western Grebe. In fact they’re similar enough that many observers never even recognize Clark’s Grebes when they see them and assume that they’re the more common Western Grebe.

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Ratchet pointing, Dip-shaking Western Grebes

Two behaviors indicative of pair bonds between mated pairs of Western (or Clark’s) Grebes are “Ratchet pointing” and “Dip-shaking”. The behaviors are often alternated, one after the other. I photographed both of them as they were performed by a pair of Western Grebes three days ago at Bear River Migratory Bird Refuge.

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