Wiki90: 90s Style Encyclopedia on the Web
In this article, we will thoroughly explore the importance of Brewer's sparrow in modern society. Brewer's sparrow is a topic that has captured the attention of experts and fans alike, generating intense debate and analysis in multiple fields of study. From its impact on the economy to its influence on popular culture, Brewer's sparrow has been the subject of endless research and reflections. In this article, we will examine how Brewer's sparrow has shaped the world today and what implications it has for the future. In addition, we will analyze various perspectives on Brewer's sparrow, providing a comprehensive and enriching vision of this topic that is so relevant today.
Brewer's sparrow | |
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Adult S. b. breweri in Deschutes National Forest, Oregon | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Passerellidae |
Genus: | Spizella |
Species: | S. breweri
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Binomial name | |
Spizella breweri Cassin, 1856
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Brewer's sparrow (Spizella breweri) is a small, slim species of American sparrow in the family Passerellidae. This bird was named after the ornithologist Thomas Mayo Brewer.
Adults have grey-brown backs and speckled brown crowns, both with dark streaks, and a pale eye-ring. Their wings are brown with light wing bars and the underparts are pale grey. Their bill is pale with a dark tip and they have a long notched tail. They are similar in appearance to the clay-colored sparrow (S. pallida) but do not have a pale stripe on the crown or grey neck patch.
The male sings to defend a nesting territory. The song is a long varied mix of notes and trills. Males have two distinct types of songs – classified as short and long songs.
There are two distinct subspecies:
These birds migrate to the southwestern United States south to central Mexico. These birds forage primarily in shrubs or in low vegetation, but also on the ground. They mainly eat insects in summer with seeds becoming a more important part of the diet at other times of the year. They usually forage in flocks outside of the breeding season, sometimes with other sparrows. The female typically lays three to four eggs (up to five) in a cup nest in low shrubs.
Brewer's sparrow has decreased in some parts of its range. Causes are not well understood, but it is suspected that the decline is due at least in part to destruction of sagebrush habitat. Additional information on resource use and limitation during the wintering season is desperately needed. When the timberline sparrow was still considered a good species, Brewer's sparrow was classified as near threatened by the IUCN. However, as only entire species are evaluated for the IUCN Red List, following the merger the entire population of S. breweri is classified as species of least concern.