Another Grebe Biting Off More Than It Can Chew

It isn’t unusual for some bird species to regularly attempt to swallow prey that is too large to go down the hatch. I see American White Pelicans and Great Blue Herons make such attempts fairly often but around here Pied-billed Grebes and Western Grebes seem to be the kings of Gluttony Hill.

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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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