Definition of brood patch
- It was an adult female, identifiable by its brood patch: a featherless area that females develop seasonally so that first their eggs and then their young can be warmed against the mother's skin.
- —Roberta Hershenson, New York Times, 2 Aug. 1992
- Pressed against the parent's warm brood patch, the single egg easily weathers brief storms.
- —Natural History, November 1990