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Least Grebe - BirdForum Opus

Revision as of 13:32, 16 August 2014 by Wintibird (talk | contribs) (taxonomy)
Tachybaptus dominicus
Photo by bobsofpa
Photographed: Sabal Palm Sanctuary, Texas, USA.

Identification

Sometimes called Short-billed Grebe.

L. 23-26cm.

  • Dark brownish-grey
  • Greenish gloss above
  • Buffy breast and flanks with heavy dark barring
  • White belly and undertail
  • Slay-trey head and neck
  • Black throat, chin, and crown
  • Yellow to orange iris
  • Black bill with small white tip
  • Brownish-olive legs

Distribution

United States, Mexico, Panama, Colombia, Venezuela, Peru, Bolivia, Paraguay and southern Brazil

Taxonomy

Five subspecies recognized:

  • T. d. brachypterus from south Texas to west-central Mexico and Panama
  • T. d. bangsi in western Mexico (southern half of Baja California and southern Sonora)
  • T. d. dominicus on Cozumel Island, Bahamas, Greater Antilles and Virgin Islands
  • T. d. eisenmanni on the coast of Ecuador; populations of northwestern Peru presumably also this subspecies
  • T. d. brachyrhynchus in tropical northern South America to south Brazil and north Argentina

Habitat

Freshwater ponds, slow-flowing rivers and swamps.

Behaviour

Breeding

The nest is a heap of rotting vegetation anchored to submerged plants in reedbeds or other marginal vegetation. 4-6 white eggs are laid and are incubated by both sexes for 21 days. Young tended by both sexes. Double-brooded, possibly treble-brooded at times.

Diet

Includes small fish and aquatic invertebrates.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9., with updates to August 2014. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/

Recommended Citation

External Links

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