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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).
They mainly eat seeds, but also eat insects in the breeding season. They are typically encountered as pairs or family groups in the breeding season, and assemble in flocks for the winter migration. The flight call is a thin seep. [17] Sensu lato, the Savannah sparrow is considered a threatened species by the IUCN.
The adult Iago sparrow feeds mainly on the seeds of grass and grain (the main cereal crop grown in Cape Verde is maize), but also on insects and plant shoots. They can do damage to crops by eating young leaves, and like house sparrows will eat the food scraps available near houses.
Lincoln's sparrow at Cosumnes River Preserve in Sacramento County, California. Juveniles strongly resemble juvenile swamp sparrows with a streaky chest and not yet buffy breast, but Lincoln's sparrows rarely have a unicolored crown like the swamp sparrow. [2] Adult measurements: [4] Length: 5.1–5.9 in (13–15 cm) Weight: 0.6–0.7 oz (17–19 g)
The song sparrow is a very rare vagrant to western Europe, with a few recorded in Great Britain and Norway. These birds forage on the ground, in shrubs or in very shallow water. They eat mainly insects and seeds. Birds in salt marshes may also eat small crustaceans. They nest either in a sheltered location on the ground or in trees or shrubs.
The average territory size of rufous-crowned sparrows in the chaparral of California ranges from 2 acres (0.81 ha) to 4 acres (1.6 ha). [11] The density of territories varies by habitat , including 2.5 to 5.8 territories per 99 acres (40 ha) of three- to five-year-old burned chaparral to 3.9 to 6.9 territories for the same amount of coastal ...
Immature birds have brown upperparts and pale brown underparts, and a plain head. Very young birds have a black beak with a pink base. The call is a chip, and the song is a rapid series of call notes chipchipchipchipchipchip. Java sparrows produce distinct trill-calls in different behavioral contexts, according to a study by Furutani et al. (2018).
Sooty fox sparrow, Sacramento, California. More specific information regarding plumage is available in the accounts for the various taxa.. Red fox sparrow, P. i. iliaca (Merrem, 1786) – this taxon breeds in the taiga of Canada and Alaska and winters in central and eastern North America.