brood patch
Noun
Meaning
brood patch (plural brood patches)
A patch of featherless skin that is visible on the underside of birds during the nesting season, helping them to transfer heat to their eggs when incubating.
Noun
brood patch (plural brood patches)
A patch of featherless skin that is visible on the underside of birds during the nesting season, helping them to transfer heat to their eggs when incubating.