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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).
Female in Sacramento, California. The spotted towhee is a large New World sparrow, roughly the same size as a robin. It has a long, dark, fan-shaped tail with white corners on the end. It has a round body (similar to New World sparrows) with bright red eyes and dull pink legs.
The Eurasian tree sparrow (Passer montanus) is a passerine bird in the sparrow family with a rich chestnut crown and nape and a black patch on each pure white cheek. The sexes are similarly plumaged, and young birds are a duller version of the adult.
Passer is a genus of sparrows, also known as the true sparrows.The genus contains 28 species and includes the house sparrow and the Eurasian tree sparrow, two of the most common birds in the world.
The bulky nest is attached to marsh vegetation, often just above the ground or surface of the water with leaves or grass arching over the top. The female builds a new nest each year and lays an average of four eggs per clutch. [3] Females give a series of chips as they leave the nest, probably to ward off attacks by their mate or neighboring males.
The chipping sparrow lays a clutch of two to seven pale blue to white eggs with black, brown, or purple markings. They are about 17 by 12 millimetres (0.67 by 0.47 in), and incubated by the female for 10 to 15 days. [7] The chipping sparrow is often brood parasitized by brown-headed cowbirds, usually resulting in the nest being abandoned. [6]
The female is up to 25% larger than the male – one of the greatest size differences between the sexes in any bird species. Though it is a predator which specialises in catching woodland birds, the Eurasian sparrowhawk can be found in any habitat and often hunts garden birds in towns and cities.
For a sparrow, the Cape sparrow is strikingly coloured and distinctive, and is medium-sized at 14–16 cm (5.5–6.3 in) long. [3] Adults range in weight from 17 to 38 grams (0.60–1.34 oz). [4] The breeding male has a mostly black head, but with a broad white mark on each side, curling from behind the eye to the throat.