An Anna's Hummingbird and an Allen's Hummingbird posturing for dominance over a feeder, La Honda, San Mateo County, California

A juvenile male Anna's Hummingbird (Calypte anna, above) and a female Allen's Hummingbird (Selasphorus sasin, below) posturing for dominance over a feeder–basically a food fight. Such 'battles' are rather common among hummingbird individuals, regardless of species; however, the term 'food fight' never means a fight with food, but rather a fight of dominance over which bird will control a specific feeder or flower.

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