Abert's towhee

Abert's towhee
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Emberizidae
Genus: Melozone
Species: M. aberti
Binomial name
Melozone aberti
(Baird, 1852)
Synonyms

Pipilo aberti
Pyrgisoma aberti

The Abert's towhee (Melozone aberti) is a bird of the family Emberizidae, native to a small range in southwestern North America, generally the lower Colorado River and Gila River watersheds, nearly endemic to Arizona, but also present in small parts of California, Nevada, Utah, New Mexico, and Sonora in Mexico. The name of this bird commemorates the American ornithologist James William Abert (1820–1897).

Description

Abert's towhees are recognized by their relatively long tails, dark faces, and overall brown plumage. They are related to sparrows and juncos but are more similar to thrashers in appearance. They may be confused with the California towhee, but their dark faces are more distinct, and the range of these species only slightly overlaps. The Abert's towhee is the longest species in the diverse Emberizidae at 21 to 25 cm (8.3 to 9.8 in) long, but its length is boasted by a relatively long tail, at 10 to 12 cm (3.9 to 4.7 in) in length.[2] Males weigh from 40–54.1 g (1.41–1.91 oz), with an average of 47.1 g (1.66 oz), while females weigh from 39.5–51 g (1.39–1.80 oz), with an average of 44.8 g (1.58 oz).[3] In terms of weight, it is outweighed by several other towhee species.[3] Among standard measurements, the wing chord is 8.2 to 9.7 cm (3.2 to 3.8 in), the bill is 1.5 to 1.6 cm (0.59 to 0.63 in) and the tarsus is 2.6 to 2.9 cm (1.0 to 1.1 in).[2]

Habitat

This bird is common in brushy riparian habitats in the Lower Sonoran desert zone and prefers to stay well-hidden under bushes. Though threatened by cowbird nest parasitism and habitat loss, it has successfully colonized suburban environments in the Phoenix, Arizona metropolitan area and may be fairly easily seen on the campus of Arizona State University. Despite its limited range, it is classified as a species of Least Concern in the IUCN Redlist, and there has been some range expansion along the Santa Cruz River as well as in Oak Creek Canyon near Sedona.

Feeding

Abert's towhees usually forage on the ground among dense brush for seeds, but they also incorporate insects into their diet.[4] Like other towhees, they scratch at the ground in a manner similar to quail, and will sometimes dig up and eat grubs. They can be attracted to feeders by providing cracked corn on the ground.

References

  1. ↑ BirdLife International (2012). "Melozone aberti". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
  2. 1 2 Sparrows and Buntings: A Guide to the Sparrows and Buntings of North America and the World by Clive Byers & Urban Olsson. Houghton Mifflin (1995). ISBN 978-0395738733.
  3. 1 2 CRC Handbook of Avian Body Masses by John B. Dunning Jr. (Editor). CRC Press (1992), ISBN 978-0-8493-4258-5.
  4. ↑ "Abert's Towhee, Life History". All About Birds. Cornell Lab of Ornithology. Retrieved 14 April 2016.

Further reading

External links

Wikimedia Commons has media related to Abert's towhee.
Wikispecies has information related to: Pipilo aberti


This article is issued from Wikipedia - version of the 11/8/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.