Crested Argus

Crested Argus
Crested Argus
Captive born juvenile male of the Annamese species in Saigon Zoo and Botanical Gardens.
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Galliformes
Family: Phasianidae
Subfamily: Phasianinae
Genus: Rheinardia
Maingonnat, 1882
Species: R. ocellata
Binomial name
Rheinardia ocellata
(Elliot, 1871)

The Crested Argus, Rheinardia ocellata, is a large and spectacular peacock-like pheasant with dark-brown-spotted black and buff plumage, a pink bill, brown irises and blue skin around the eyes. The head is small, decorated with white erect crest feathers on the rear crown. The male has a broad and greatly elongated tail of twelve feathers. He measures from 1.9–2.39 m (6.2–7.8 ft) in total length. The tail covert (or "train") of the male is the longest of any bird and is believed to contain the longest (and widest) feathers to occur in a wild bird. The tail covert measure up to 1.73 m (5.7 ft) in length.[1] The female looks similar, with a shorter crest and tail, and averages 0.75 m (2.5 ft) in length. The species is the only member in the monotypic genus Rheinardia. Despite being the most sexually dimorphic galliform by length, the male only weighs about 20% more than the female. The average weight is around 1.5 kg (3.3 lb).[2]

Little is known about this species in the wild. A shy and elusive bird, the Crested Argus is found in forests of Vietnam, Laos and Malaysia in Southeast Asia. The diet consists mainly of, invertebrates,mollusks, amphibians, small reptiles, bamboo shoots, leaves, fruits and fungus.

Like other Peafowl, Crested Argus retire on emergent trees above the forest canopy for many hours a day. They will remain on these trees for days at a time during the wet season. Crested Argus are strong fliers and pairs have been reported flying together.

Due to ongoing habitat loss as well as overhunting in some areas, the Crested Argus is evaluated as Near Threatened on the IUCN Red List. It is listed on Appendix I of CITES.

References

  1. ^ "Amazing Bird Records". Trails.com. 2010-07-27. http://www.trails.com/arts/amazing-bird-records.aspx. Retrieved 2011-10-20. 
  2. ^ Biddle, Tami Davis, Pheasants, Partridges, and Grouse : A Guide to the Pheasants, Partridges, Quails, Grouse, Guineafowl, Buttonquails, and Sandgrouse of the World (Princeton Field Guides). Princeton University Press (2002), ISBN 978-0691089089
  • BirdLife International (2005). Rheinardia ocellata. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 30 October 2006. Database entry includes a brief justification of why this species is near threatened

External links


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