Sexual display of house sparrows may begin as early as February and is followed by the building of nests in protected locations. Nests are placed from eight to thirty feet above the ground. (2,5-9μ) Preferred sites are under the eaves of houses, in gutters, holes and crevices in buildings, or in tree cavities. The nest is roofed over and has an entrance hole in the side. The outer layer consists of grass or straw and the inner lining of softer materials, such as feathers, hair, string, fine grasses, or paper. Nests are commonly used year after year. House sparrows are slightly territorial and will defend the area immediately surrounding the nest. ...
! House sparrows can be readily maintained and bred in captivity and are used frequently as laboratory animals for experimental studies!
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The House Sparrow prefers to nest in manmade structures such as eaves or walls of buildings, street lights, and nest boxes instead of in natural nest sites such as holes in trees.
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! House sparrows can be readily maintained and bred in captivity and are used frequently as laboratory animals for experimental studies!
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The House Sparrow prefers to nest in manmade structures such as eaves or walls of buildings, street lights, and nest boxes instead of in natural nest sites such as holes in trees.
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