July Twelfth
With most birds, the female only builds the nest and incubates the eggs, after which both birds usually assist in bringing up the young. Some of the exceptions to this rule are the male Bob-white, house wren, catbird, blue-headed, yellow-throated, and warbling vireos, and the barn and eave swallows, each of which does his share of the domestic duties and takes care of the young birds.