Langbahn Team – Weltmeisterschaft

Black-throated sparrow

Black-throated sparrow
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Passerellidae
Genus: Amphispiza
Coues, 1874
Species:
A. bilineata
Binomial name
Amphispiza bilineata
(Cassin, 1850)

The black-throated sparrow (Amphispiza bilineata) is a small New World sparrow primarily found in the southwestern United States and Mexico. It is the only member of the genus Amphispiza; the five-striped sparrow, formerly also classified in Amphispiza, is now thought to be in the monotypic genus Amphispizopsis.[2]

It is sometimes referred to as the desert sparrow, due to its preferred habitat of arid desert hillsides and scrub. This name usually refers to the desert sparrow of Africa and Asia.

Description

Measurements:[3]

  • Length: 4.7–5.5 in (12–14 cm)
  • Weight: 0.4–0.5 oz (11–14 g)
  • Wingspan: 7.7 inches (20 cm)

The black-throated sparrow is pale gray above, with a distinctive black and white head pattern. Immature birds are similar but lack a black throat. Its call is high and bell-like, and its song is a fairly simple, mechanical tinkling. It feeds primarily on insects and seeds, and travels in small groups, though larger groups may accumulate around sources of water in the desert.

It has a loose nest of grass twigs and plant fibers carefully hidden in brush 6–18 inches (15–46 cm) above the ground. Black-throated sparrows are habitat-generalist species, using a wide range of plants as habitats to build their nests in.[4] However, they find less breeding success in lower-climate habitats like mesquite,[5] perhaps due to human-caused climate change.[6] Three or four white or pale blue eggs are laid.

Diet

The black-throated sparrow's diet consists of bugs during the mating season and seeds during the non-breeding season.[citation needed] They mainly forage on the ground around bushes and cacti and sometimes glean food from leaves and twigs.[citation needed]

References

  1. ^ BirdLife International (2018). "Amphispiza bilineata". IUCN Red List of Threatened Species. 2018: e.T22721194A132008021. doi:10.2305/IUCN.UK.2018-2.RLTS.T22721194A132008021.en. Retrieved 12 November 2021.
  2. ^ "Taxonomic Updates – IOC World Bird List". Retrieved 14 July 2021.
  3. ^ "Black-throated Sparrow Identification, All About Birds, Cornell Lab of Ornithology". allaboutbirds.org. Retrieved 29 September 2020.
  4. ^ Kozma, J. M., Burkett, L. M., Kroll, A. J., Thornton, J., & Mathews, N. E. (2017). Factors associated with nest survival of Black-throated Sparrows, desert-breeding nest-site generalists. Journal of Field Ornithology, 88(3), 274–287. https://doi.org/10.1111/jofo.12209Retrieved 2 November 2024
  5. ^ Pidgeon, A. M., Radeloff, V. C., & Mathews, N. E. (2003). Landscape-Scale Patterns of Black-Throated Sparrow (Amphispiza bilineata) Abundance and Nest Success. Ecological Applications, 13(2), 530–542. https://doi.org/10.1890/1051-0761(2003)013[0530:LSPOBT]2.0.CO;2. Retrieved 2 November 2024
  6. ^ Hargrove, L., & Rotenberry, J. T. (2011). Breeding success at the range margin of a desert species: implications for a climate-induced elevational shift. Oikos, 120(10), 1568–1576. https://doi.org/10.1111/j.1600-0706.2011.19284.x. Retrieved 2 November 2024


Quelle: http://en.wikipedia.org/wiki/Amphispiza