Wednesday, 27 April 2016
Only female crows get brood patches during the nesting season: two bare and highly vascularised areas on the chest, which are in direct contact with the eggs and make incubation more efficient. These patches are covered with the feathers surrounding them, which the female fluffs open before sitting on the eggs. The male doesn't get brood patches, and doesn't incubate. During this time, the male feeds the female, and sometimes stands guard near the nest, as this poor photo shows. The female's tail sticking out of the nest on the left and the male sitting on the right. During the breeding period, the male is very protective of the nest area, and these days I see them mobbing Herring Gulls and Sparrowhawks that come near the nest.