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The key for a bluebird nest box is to have the hole be exactly 1.5 inches in diameter. ... Three or four broods of house sparrows can produce 20-30 young house sparrows which will be looking for a ...
The eastern bluebird (Sialia sialis) is a small North American migratory thrush found in open woodlands, farmlands, and orchards. The bright-blue breeding plumage of the male, easily observed on a wire or open perch, makes this species a favorite of birders.
Nestlings remain in a nest about 19 to 22 days before fledging. In a good year, the parents can rear two broods, with four to six eggs per clutch. According to genetic studies, 45% of western bluebirds' nests carried young that were not offspring of the male partner. In addition, they help their parents raise a new brood after their own nest fails.
The bluebirds are a North American [1] group of medium-sized, mostly insectivorous or omnivorous birds in the order of Passerines in the genus Sialia of the thrush family (Turdidae). Bluebirds are one of the few thrush genera in the Americas. Bluebirds lay an average of 4 to 6 eggs per clutch. They will usually brood two or three times in a year.
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Cliff swallows are not common birds and to have them nesting on our vinyl-sided house is very unusual as they traditionally prefer nesting under bridges or eaves of old barns. Last year was a ...
Mountain Bluebird is a U.S.-Canada Stewardship species, and is not on the 2014 State of the Birds Watch List. These bluebirds benefited from the westward spread of logging and grazing in the late nineteenth and early twentieth centuries, when the clearing of forest created open habitat for foraging.
Nests are built low in trees or bushes, 1–10 m (3.3–32.8 ft) above the ground, primarily by the female, while the male guards her efforts. The nests are sturdy, with an outside diameter of 33–58 cm (13–23 in), constructed on a platform of twigs with moss and dry grasses lined with fine roots and hair.