Grebes Eating Feathers (including two graphic images)

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Grebes eat feathers. Lots of them. They do it intentionally and for good reason. [...]

Western And Clark’s Grebes – A Comparison

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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. [...]