Madagascar Serpent-eagle
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| Madagascar Serpent-eagle | ||||||||||||||
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| Eutriorchis astur (Sharpe, 1875) |
The Madagascar Serpent-eagle, Serpentaire de Madagascar, or Culebrera Azor (Eutriorchis astur) is a species of bird of prey in the Accipitridae family. It is monotypic within the genus Eutriorchis. It is endemic to Madagascar.[1]
Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
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[edit] Description
The Madagascar Serpent-eagle is a medium-sized raptor with a long rounded tail and short rounded wings.[2] It is dark grey on its back and a lighter grey on its belly, breast, and throat.[2] Dark barring covers the bird's body. It has yellow eyes and a sharp, hooked beak with strong talons.[2]
[edit] Distribution and habitat
This bird inhabits dense, humid, and broadleafed evergreen forests in northeastern and east-central Madagascar. It rarely ventures above 550 meters (1800 ft).[2]
[edit] Ecology and behavior
This serpent-eagle is diurnal. It eats snakes, lizards, and frogs, which they hunt from high perches, swooping down from it perch and grasping its prey in its talons when it spots it.[2]
[edit] Conservation
This species was believed to be extinct, with the last confirmed sighting being from 1950.[2] However, sightings in 1977 and 1988 led to hope for the species' rediscovery.[2] It was rediscovered in 1993 by the Peregrine Fund.
This species is threatened by the destruction of its specialized habitat and a presumed low rate of reproduction.[2]
[edit] Etymology
The prefix "eu-" is Greek for "good". "Triorchis" is a Latinization (Pliny the Elder) of Greek "triorkhis" (τριορχης), which Aristotle and Theophrastus used for a kind of hawk, possibly the Common Buzzard. The Greek word means "having three testicles". [3][4] This erroneous bit of anatomy has been connected with the ease of mistaking a bird's adrenal gland for a testicle.[5]
[edit] References
- ^ BirdLife International 2004. Eutriorchis astur. 2006 IUCN Red List of Threatened Species. Downloaded on 24 July 2007.
- ^ a b c d e f g h "Madagascar Serpent Eagle". The Official World Wildlife Fund Guide to Extinct Species of Modern Times 1. (1997). Beacham Publishing. 13-14.
- ^ Liddell, Henry George & Scott, Robert (1940), A Greek-English Lexicon, <http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%23105095>. Retrieved on 15 November 2007
- ^ Pliny the Elder, Historia Naturalis, Book 10, Chapters 9, 95, 96. English translation from the Perseus Digital Library. Both retrieved on Nov. 16, 2007.
- ^ Fisher, Peter & Higgins, Humphrey (translators) (1998), Olaus Magnus: A Description of the Northern Peoples, 1555, Hakluyt Society, pp. 1011n, <http://books.google.com/books?id=iMQMAAAAYAAJ&pgis=1>. Retrieved on 15 November 2007. See Olaus Magnus and Historia de Gentibus Septentrionalibus
