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Slate-colored Hawk
Buteogallus schistaceus

Status: Lower risk

Population Trend: Unknown.

Other Names: Leucopternis schistacea, Slate-coloured Hawk, Leucopternis schistaceus.


Buteogallus schistaceus
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Distribution: Neotropical.  Amazonia from southeastern COLOMBIA and southwestern VENEZUELA east to FRENCH GUIANA, north-central BRAZIL and south to eastern ECUADOR and eastern PERU to northern and eastern BOLIVIA. more....

Subspecies: Monotypic.

Taxonomy: Using sequences from four mitochondrial genes, Amaral et al. (2006) found that the genus Leucopternis, as traditionally arranged, is not monophyletic and that it is a composite of three independent lineages. Earlier, Ridgway (1876), Brown and Amadon (1968), and Amadon (1982) predicted a close relationship between this species and L. plumbeus and the genus Buteogallus, and Hellmayr and Conover (1949) and Amadon and Bull (1988) regarded the two forms as conspecific, or at least forming sister species. However, the molecular studies of Amaral et al. (op cit.) did not show such a close relationship between the two. Their data revealed the existence of a clade formed by this species, L. plumbeus, L. lacernulatus, Buteogallus urubitinga, B. meridionalis, and Harpyhaliaetus coronatus and established an early split of L. plumbeus from the other species in this clade. Lerner et al. (2008) also found that L. plumbeus and L. schistacea are more closely related to Bueogallus than to other Leucopternis species. David and Gosselin (2002) pointed out that the generic name Leucopternis is masculine, hence the change from ""plumbea" to plumbeus.

Movements: Probably non-migratory.

Habitat and Habits: Occurs in lowlands, frequenting the shady banks of rivers and lakes, flooded backwaters, várzea forest, mangroves, and swamps. Rarely soars. Rather sluggish and not particularly wary.more....

Food and Feeding Behavior: Feeds on snakes, lizards, frogs, crabs, fish, and insects. Perches in open at low to mid-levels along streams and drops on prey at edge of water. It also follows monkey troops to capture flushed insects (Robinson 1994). more....

Breeding: No information.

Conservation: Categorized as a species of "Least Concern" by BirdLife International.

Important References: 
Amaral, F.S.R., M.J. Miller, L.F. Silveira, E. Bermingham, and A. Wajntal.
  2006. Polyphyly of the hawk genera Leucopternis and Buteogallus (Aves,
  Accipitridae): multiple habitat shifts during the Neotropical buteonine
  diversification. BMC Evolutionary Biology 6:1-10.
Bierregaard, R.O. 1994. Slate-coloured Hawk. P. 168 in del Hoyo, J., A.
  Elliott, and J. Sargatal (eds). Handbook of birds of the world. Vol. 1. 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.
Lledo-Ferrer, Y., A. Hidalgo, E.W. Heymann, and F. Peldez. 2009. Field
  observations of predation of a Slate-colored Hawk, Leucopternis schistacea,
  on a juvenile Saddle-back Tamarin, Saguinus fuscicollis. Neotropical
  Primates 16:82-84.
Robinson, S.K. 1994. Habitat selection and foraging ecology of raptors in
  Amazonian Peru. Biotropica 26:443-458.
Sick, H. 1993. Birds in Brazil: a natural history. Princeton University
  Press, Princeton, NJ.
more....

Sites of Interest:
Xeno-canto
Vocalizations.
Aves de Rapina do Brasil
Species account with emphasis on Brazil.

Researchers:
Shrum, Peggy

Last modified: 2/13/2013

Recommended Citation: Global Raptor Information Network. 2017. Species account: Slate-colored Hawk Buteogallus schistaceus. Downloaded from http://www.globalraptors.org on 19 Aug. 2017








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