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Boat-tailed Grackle (Quiscalus major)

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Gaping Blackbirds

Gordon Orians describes an unusual adaptation in blackbirds called "gaping": "...the ability to forcibly open the bill against some pressure, so that a bird can push its bill into the base of a grass clump, and forcibly open it, which reveals the insects that may be down hidden in the base. ...... read more »

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