eWestern Birds

The Quarterly Journal of Western Field Ornithologists

Vol. 55, No. 1
March 2024
Western Field Ornithologists


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American Crow Cracks Open Bivalve via Automobile
Sierra R. Glassman and Emily Y. Banno

ABSTRACT: There have been many observations of corvids placing a hard-shelled food item onto a roadway, then consuming the food exposed when a passing automobile crushes the shell. However, it has been debated whether corvids perform this behavior intentionally. Our observation of an American Crow (Corvus brachyrhynchos) placing a bivalve on a road, then eating the meat exposed when the shell was run over, supports the idea that corvids intentionally use cars to crack shelled foods.

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