The Majesty of the Secretarybird: Africa's Stately Raptor on Stilts | Feathered Explorer

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  • Опубликовано: 13 сен 2024
  • The secretarybird or secretary bird (Sagittarius serpentarius) is a large, mostly terrestrial, bird of prey. Endemic to Africa, it is usually found in the open grasslands and savanna of the sub-Saharan region. John Frederick Miller described the species in 1779. A member of the order Accipitriformes, which also includes many other diurnal birds of prey such as eagles, hawks, kites, vultures, and harriers, it is placed in its own family, Sagittariidae.
    The secretarybird is instantly recognisable as a very large terrestrial bird with an eagle-like head and body on crane-like legs. It stands about 1.3 m (4 ft 3 in) tall. It has a length of between 1.1 and 1.5 m (3 ft 7 in and 4 ft 11 in) and a wingspan of between 1.9 and 2.1 m (6 ft 3 in and 6 ft 11 in). The weight ranges from 3.74 to 4.27 kg (8.2 to 9.4 lb), with a mean of 4.05 kg (8.9 lb). The tarsus averages 31 cm (12 in) and the tail is 57-85 cm (22-33 in): both factor into making it both taller and longer than any other species of raptor. The neck is not especially long, and can only be lowered down to the intertarsal joint, so birds must stoop to reach down to the ground.
    Breeding can take place at any time of year, but tends to be late in the dry season. The nest is built at the top of a thorny tree, and a clutch of one to three eggs is laid. In years with plentiful food all three young can survive to fledging. The secretarybird hunts and catches prey on the ground, often stomping on victims to kill them. Insects and small vertebrates make up its diet.
    Although the secretarybird occurs over a large range, the results of localised surveys suggest that the total population is experiencing a rapid decline, probably as a result of habitat destruction. The species is therefore classed as Endangered by the International Union for Conservation of Nature. The secretarybird appears on the coats of arms of Sudan and South Africa.
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