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Semicollared Hawk
Accipiter collaris

Status: Near Threatened

Population Trend: Unknown.

Other Names: American Collared Sparrowhawk, American Collared Hawk, Semi-collared Hawk, Semicollared Sparrowhawk


Accipiter collaris
click to enlarge
Distribution: Neotropical. Subtropical zone from southwestern VENEZUELA (Mérida, Táchira, Barinas) south on the western and eastern slopes of the Andes through COLOMBIA (Santa Marta Mountains) to western ECUADOR; one recent record from PERU. more....

Subspecies: Monotypic.

Taxonomy: Formerly thought to form a superspecies with A. superciliosus (Stresemann and Amadon 1979, Sibley and Monroe 1990, Bierregaard 1994), but Olson (2006) recently showed that the latter species may not even belong in the genus Accipiter, based primarily on osteological characters. Relationships of the Neotropical Accipiter species require clarification.

Movements: Non-migratory (Bildstein and Zalles 2005).

Habitat and Habits: Occurs in middle level elevations, frequenting humid montane forest, forest edges, and adjacent clearings with large trees. Typically encountered perched in a large tree at the edge of forest. Occurs in parallel with the similar Tiny Sparrowhawk, but at a higher elevational band along the Andes. Ridgely and Greenfield (2001) suggested that its habits more resemble those of A. ventralis, since both species soar regularly. In Colombia, Cuervo et al. (2008) recorded this species in the subcanopy of the forest interior. more....

Food and Feeding Behavior: Probably feeds mainly, or exclusively, on birds. A male collected by Cuervo et al. (2008) in northern Colombia had passerine feathers in its stomach. Freile and Chaves (2004) observed one chasing Dusky Bush-tanagers at Otanga on the western slopes of the Andes in northwestern Ecuador.

Breeding: No information. A male collected by Cuervo et al. (2008) in northern Colombia on 24 February 2002 was in breeding condition.

Conservation: One of the most poorly known diurnal raptors. It is apparently scarce throughout its range, although it is probably often overlooked, but possible causes for its rarity are unknown. Bierregaard (1994) regarded it as Near Threatened, as does BirdLife International. more....

Population Estimates: No information.

Important References: 
Bierregaard, R.O. 1994. Semi-collared Hawk. P. 154 in del Hoyo, J., A.
  Elliott, and J. Sargatal (eds). Handbook of birds of the world. Vol. 2. New
  World vultures to guineafowl. Lynx Edicions, Barcelona, Spain.
Ferguson-Lees, J., and D.A. Christie. 2001. Raptors of the world. Houghton
  Mifflin, Boston, MA.
more....

Researchers:
Quirós Bazán, Norman
Whittaker, Andrew

Last modified: 9/20/2011

Recommended Citation: Global Raptor Information Network. 2014. Species account: Semicollared Hawk Accipiter collaris. Downloaded from http://www.globalraptors.org on 25 Apr. 2014








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