Forest falcon
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| Collared forest falcon Micrastur semitorquatus |
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Micrastur
G.R. Gray, 1841
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7 currently recognised: See text |
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Forest falcons are members of the genus Micrastur, part of the family Falconidae. They are endemic to the Americas, found from Mexico in the north, south through Central America and large parts of South America, and as far south as northern Argentina. Most are restricted to humid tropical and subtropical forests, but the two most widespread species, the collared and the barred forest falcons, also range into drier and more open habitats.[1]
Forest falcons, like most Accipiter-type hawks (but unlike other falcons), are adapted for agility in thick cover rather than outright speed in the open air. They have short wings, long tails, and extraordinarily acute hearing. While generally visually inconspicuous, their songs are commonly heard.
Their diet is a mixture of birds, mammals, and reptiles. Hunting is often performed in goshawk fashion: the bird takes up a perch in an inconspicuous position and waits for a prey species to pass, then strikes with a short, rapid pursuit. Forest falcons are inventive, flexible hunters, and at least some species (such as the relatively long-legged collared forest falcon) are also capable of catching terrestrial prey on foot.
In 2002, a new species was described, found in the Atlantic forest and the southeastern Amazon of Brazil (and later also confirmed for adjacent parts of Bolivia). It has been named Micrastur mintoni, the cryptic forest falcon, as it is phenotypically highly similar to M. gilvicollis.[2]
Species
- Barred forest falcon, Micrastur ruficollis
- Plumbeous forest falcon, Micrastur plumbeus
- Lined forest falcon, Micrastur gilvicollis
- Cryptic forest falcon, Micrastur mintoni
- Slaty-backed forest falcon, Micrastur mirandollei
- Collared forest falcon, Micrastur semitorquatus
- Buckley's forest falcon, Micrastur buckleyi
References
- ↑ Bierregaard, R. O. (1994) Species accounts - Genus Micrastur. In: Del Hojo J, Elliott A, Sargatal J (eds), Handbook of the Birds of the World, Volume 2, pp 252–254. Barcelona: Lynx Edicions
- ↑ Whittaker, A. (2002). A new species of forest-falcon (Falconidae: Micrastur) from south eastern Amazonia and the rain forests of Brazil. Wilson Bulletin, 114, 421–445.
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