French: Buse à queue blanche German: Weißschwanzbussard Spanish: Busardo coliblanco
South America = Rio de Janeiro, Brazil.
Subspecies and Distribution
G. a. hypospodius
(Gurney, Sr, 1876) – SC USA (S Texas) and N Mexico (from Sonora and Tamaulipas) S discontinuously to N & C Colombia and NW Venezuela.
G. a. colonus
(Berlepsch, 1892) – E Colombia E to Suriname (absent NW Venezuela), and S to Amazon, E from at least Manaus to Atlantic coast; W Leeward Antilles (Aruba, Curaçao, Bonaire); rare visitor to Trinidad.
G. a. albicaudatus
(Vieillot, 1816) – extreme SE Peru (Pampas del Heath) and E & S Brazil (S from Mato Grosso and SE Pará) through N & E Bolivia, Paraguay and Uruguay to N & C Argentina (S to Río Negro).
44–60 cm; 744–1235 g; wingspan 118–143 cm. Stocky, long-winged, long-legged polymorphic hawk, with pale and dark morphs in all three subspecies. Pale morph... read more
Typical alarm or territorial call a series of notes that vary by sex: “aaaa, ke-HAK, ke-HAK, ke-HAK... read more
Tropical to subtropical zones in semi-arid grassland, prairie and other open country, but also... read more
Food and feeding
Broad range of small vertebrates and invertebrates, including snakes, lizards, young rabbits and hares (Sylvilagus and Lepus... read more
Most data from N edge of range in Texas, S USA. Eggs in nest from Jan–Aug in Texas (late nests probably replacement clutches), with... read more
Poorly known. Presumably sedentary over most of range. Northernmost birds are not migratory in that... read more
Status and conservation
Not globally threatened (Least Concern), although listed as State threatened in Texas, USA. CITES II. Extensive range; apparently on increase as result of deforestation.... read more
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