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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