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Each female lays three to seven light-blue or, rarely, white eggs. The female incubates the eggs, which hatch after 13 to 16 days. The young cannot care for themselves upon hatching. The female broods the chicks for up to seven days after hatching. Fledglings then leave the nest 15 to 20 days after hatching. [11]
The span between precocial and altricial species is particularly broad in the biology of birds. Precocial birds hatch with their eyes open and are covered with downy feathers that are soon replaced by adult-type feathers. [17] Birds of this kind can also swim and run much sooner after hatching than altricial young, such as songbirds. [17]
It builds an open cup nest in the branches of a tree; both sexes participate. The clutch may be two to seven eggs, which are blueish or light brown with darker brown spots. Young are altricial, and are brooded by the female for 8–12 days after hatching. They may stay with their parents for one to two months. The name jay derives from the bird ...
The American robin is the state bird of Michigan. This list of birds of Michigan includes species documented in the U.S. state of Michigan and accepted by the Michigan Bird Records Committee (MBRC). As of January 2023, there are 456 species included in the official list. [1]
An audio recording of a house sparrow. The house sparrow (Passer domesticus) is a bird of the sparrow family Passeridae, found in most parts of the world. It is a small bird that has a typical length of 16 cm (6.3 in) and a mass of 24–39.5 g (0.85–1.39 oz).
The world's oldest known wild bird may soon be a mom again! The U.S. Fish and Wildlife Service (FWS) posted on X (formerly known as Twitter) on Tuesday, Dec. 3, that Wisdom, a 74-year-old Laysan ...
The species also has the second-largest average wingspan of any North American bird, after the California condor. This large wingspan allows the bird to easily use soaring flight for migration. Body weight can range between 7.7 and 30 lb (3.5 and 13.6 kg), although typically these birds average between 11 and 20 lb (5.0 and 9.1 kg). [10]
Record warmth and little snow in the winter of 2023-24 have allowed many birds to migrate back to Wisconsin far earlier than normal this spring. Smith: Gone barely a month, migrating birds are ...