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Journal Article

Belding's Savannah Sparrows Eat Eggs from Live Fiddler Crabs

Catherine E. deRivera
The Wilson Bulletin
Vol. 112, No. 3 (Sep., 2000), pp. 427-428
Stable URL: http://www.jstor.org/stable/4164248
Page Count: 2

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Topics: Crabs, Sparrows, Eggs, Female animals, Birds, Waterfowl, Mud flats
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Abstract

On 17 occasions in Chula Vista, California, at least one Belding's Savannah Sparrow (Passerculus sandwichensis beldingi) was observed chasing egg-carrying female fiddler crabs (Uca crenulata) and pecking eggs from ones it caught. Sparrows did not eat any part of the adult crab while eating the eggs. A fledgling learned this novel hunting technique after accompanying its parent for a month.

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