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An upland buzzard in Tibet. The upland buzzard normally found in open, high elevation regions. While recorded at over 5,000 m (16,000 ft) in elevation, the species normally nests at elevations between 1,000 and 4,500 m (3,300 and 14,800 ft) and may at times be recorded down to sea-level during the winter.
The largest species in length and wingspan is the upland buzzard, which averages around 65 cm (26 in) in length and 152 cm (60 in) in wingspan. The upland is rivaled in weight and outsized in foot measurements and bill size by the ferruginous hawk .
The largest dimensions found in this species are an approximate head-to-tail length of 1.44 m (4.7 ft) and a wingspan of 3.65 m (12.0 ft). The largest bird of all time was likely the elephant bird Aepyornis maximus , which was estimated to have weighed 275–1,000 kilograms (610–2,200 lb) and stood at 3 metres (9.8 ft) tall.
Rough-legged buzzard: Accipitridae: Buteo lagopus (Pontoppidan, 1763) 252 Upland buzzard: Accipitridae: Buteo hemilasius Temminck & Schlegel, 1845: 253 Eastern buzzard: Accipitridae: Buteo japonicus Temminck & Schlegel, 1845: 254 Himalayan buzzard: Accipitridae: Buteo refectus Portenko, 1935: 255 Long-legged buzzard: Accipitridae: Buteo rufinus ...
Among the normal standard measurements, the wing chord measures 415 to 477 mm (16.3 to 18.8 in), the tarsus measures 81 to 92 mm (3.2 to 3.6 in) and the tail measures 224 to 252 mm (8.8 to 9.9 in). Additionally, the grasp is 94 to 125 mm (3.7 to 4.9 in) and the third toe 29.5 to 45 mm (1.16 to 1.77 in), indicating that the ferruginous hawks has ...
The sexes have conspicuously different sizes and sometimes a female is more than twice as heavy as her mate. ... (PDF). The Auk. 127 (3): 726–744.
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The genus Butastur was introduced in 1843 by the English naturalist Brian Houghton Hodgson with the white-eyed buzzard as the type species. [1] [2] The genus name is a portmanteau of the genus Buteo introduced by Bernard Germain de Lacépède for the buzzards and Astur introduced by Lacépède for the goshawks. [3]