Order Falconiformes / Family Accipitridae APPENDIX II ...
2
Order Falconiformes / Family Accipitridae APPENDIX II Parabuteo unicinctus (Temminck, 1824) __________________________________________________________________________________________________________________ _____________________________________________________________________________________________________ Code A-213.003.050.001 1996 (1) Common names: engl.: Harri's Hawk, Bay-winged Hawk esp.: Busardo mixto fr.: Buse de Harris de.: Wüstenbussard Scientific synonyms: Falco unicinctus Temminck, 1824 Characteristics: Parabuteo unicinctus harrisi Adult: Female larger than male. Measurements: Total length from tip of bill to tip of tail: 48-56 cm (P.u. superior); length of wing from bend of folded wing to tip of primaries: male 310-352 mm, female 325-370 mm; length of tail from fold of skin between central tail-feathers to tip of longest tail-feathers: male 207-230 mm, female 213-243 mm. Weight: Male c. 725 g, female 834-1,047 g. General appearance: General colour brown, chestnut on shoulders and thighs. Tail black, white at tip and base. Wings rather long. Tail long and rounded. Head: Blackish or sooty brown. Upperparts: Blackish or sooty brown. Underparts: Blackish or sooty brown. Thighs bright chestnut. Wings: Blackish or sooty brown. Shoulders and under-wing coverts bright chestnut. Tail: Black, white at base and tip. Upper- and under-tail coverts white. Legs: Bright yellow. Eye: Iris dark brown. Eyelids bright yellow. Cere: Bright yellowish. Bill: Horn bluish, with black tip. Immature: Like adult, but underparts vaguely streaked with whitish. Feathers of upperparts more or less edged with rufous. Outer tail feathers obscurely barred. Iris brown. Legs dull yellow.
Transcript of Order Falconiformes / Family Accipitridae APPENDIX II ...
Order Falconiformes / Family Accipitridae APPENDIX II
Parabuteo unicinctus (Temminck, 1824) __________________________________________________________________________________________________________________
_____________________________________________________________________________________________________ Code A-213.003.050.001 1996 (1)
Common names: engl.: Harri's Hawk, Bay-winged Hawk esp.: Busardo mixto fr.: Buse de Harris de.: Wüstenbussard
Scientific synonyms: Falco unicinctus Temminck, 1824
Characteristics: Parabuteo unicinctus harrisi
Adult: Female larger than male.
Measurements: Total length from tip of bill to tip of tail: 48-56 cm (P.u. superior); length of wing from bend of folded wing to tip of primaries: male 310-352 mm, female 325-370 mm; length of tail from fold of skin between central tail-feathers to tip of longest tail-feathers: male 207-230 mm, female 213-243 mm.
Weight: Male c. 725 g, female 834-1,047 g.
General appearance: General colour brown, chestnut on shoulders and thighs. Tail black, white at tip and base. Wings rather long. Tail long and rounded.
Head: Blackish or sooty brown.
Upperparts: Blackish or sooty brown.
Underparts: Blackish or sooty brown. Thighs bright chestnut.
Wings: Blackish or sooty brown. Shoulders and under-wing coverts bright chestnut.
Tail: Black, white at base and tip. Upper- and under-tail coverts white.
Legs: Bright yellow.
Eye: Iris dark brown. Eyelids bright yellow.
Cere: Bright yellowish.
Bill: Horn bluish, with black tip.
Immature: Like adult, but underparts vaguely streaked with whitish. Feathers of upperparts more or less edged with rufous. Outer tail feathers obscurely barred. Iris brown. Legs dull yellow.
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________ Text: Jean-Pierre Biber, Basle Drawing: Christine Hippenmeyer, Bern Submitted by the Management Authority of Switzerland
Distribution: Seasonally dry desert, Chaco and savanna, up to 1,500 m. Central and South America. P.u. harrisi: SW USA through NW Mexico and Central America (except Belize and Honduras) to W Colombia, Ecuador and Peru. P.u. unicinctus: NE Colombia and W Venezuela south through E Bolivia and central NE Brazil to S Argentina.
Population:
Wild population: Not globally threatened. Common in many parts of range.
Captive population: According to the International Zoo Yearbook 15 birds bred successfully in captivity in 1993.
Trade: According to the statistics of the World Conservation Monitoring Centre 2 dead and 108 live specimens in trade in 1993 and 42 live specimens in 1994.
Intraspecific variation: Two subspecies recognized: P.u. harrisi: Description see above P.u. unicinctus: Below lightly flecked with white. Thighs barred with dusky. Immature buffy or whitish below, coarsely streaked with dusky. Throat and superciliary white or buff. Smaller than harrisi.
Similar species: Adult unmistakable. Immature could be confused with immatures of Buteogallus (sheets A-213.003.008.001 - A-213.003.008.004 et A-213.003.032.001) species, but is distinguished from them by white upper-tail coverts.
Bibliography: Brown, L. & Amadon, D. (1989) Eagles, Hawks and Falcons of the World. Wellfleet, Secaucus. Del Hoyo, J., Elliott, A. & Sargatal, J. eds. (1994) Handbook of Birds of the World. Vol. 2. New
World Vultures to Guineafowl. Lynx Editions, Barcelona. Weick, F. & Brown, L.H. (1980) Birds of Prey of the World. Collins, London.
