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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).
The Iago sparrow was once thought to be most closely related to the rufous sparrows, a group of species within the genus Passer which live in similar habitats on continental Africa. Though the Iago sparrow is closest to the rufous sparrows in appearance, it has a number of crucial differences in morphology and behavior, and is separated by ...
List of birds of Santa Cruz County, California. The county is in Northern California, located on the California coast, including northern Monterey Bay, and west of the San Francisco Bay and Silicon Valley. It includes the southwestern Santa Cruz Mountains. [1] [2]
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 ...
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)
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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).
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