Andean Condor

The Andean condor (Vultur gryphus) is a South American bird in the New World vulture family Cathartidae and is the only member of the genus Vultur. Found in the Andes mountains and adjacent Pacific coasts of western South America, the Andean condor is the largest flying bird in the world by combined measurement of weight and wingspan. It has a maximum wingspan of 3.3 m (10 ft 10 in) exceeded only by the wingspans of four seabirds and water birds—the roughly 3.5 m (11 ft 6 in) maximum of the wandering albatross, southern royal albatross, great white pelican and Dalmatian pelican.
It is a large black vulture with a ruff of white feathers surrounding the base of the neck and, especially in the male, large white patches on the wings. The head and neck are nearly featherless, and are a dull red color, which may flush and therefore change color in response to the bird's emotional state. In the male, there is a wattle on the neck and a large, dark red comb or caruncle on the crown of the head. Unlike most birds of prey, the male is larger than the female.
The condor is primarily a scavenger, feeding on carrion. It prefers large carcasses, such as those of deer or cattle. It reaches sexual maturity at five or six years of age and nests at elevations of up to 5,000 m (16,000 ft), generally on inaccessible rock ledges. One or two eggs are usually laid. It is one of the world's longest-living birds, with a lifespan of over 70 years in some cases.
The Andean condor is a national symbol of Argentina, Bolivia, Chile, Colombia, Ecuador, and Peru and plays an important role in the folklore and mythology of the Andean regions. The Andean condor is considered near threatened by the IUCN. It is threatened by habitat loss and by secondary poisoning from carcasses killed by hunters. Captive breeding programs have been instituted in several countries.
== Description ==
Although it is on average about seven to eight cm shorter from beak to tail than the California condor, the Andean condor is larger in wingspan, which ranges from 270 to 320 cm (8 ft 10 in to 10 ft 6 in). It is also typically heavier, reaching a weight of 11 to 15 kg (24 to 33 lb) for males and 8 to 11 kg (18 to 24 lb) for females. Overall length can range from 100 to 130 cm (3 ft 3 in to 4 ft 3 in). Among standard measurements, the wing chord is 75.7–85.2 cm (29.8–33.5 in), the tail is 33–38 cm (13–15 in) and the tarsus is 11.5–12.5 cm (4.5–4.9 in). Measurements are usually taken from specimens reared in captivity. The mean weight is 11.3 kg (25 lb), with the males averaging about a kilogram more at 12.5 kg (28 lb), the females a kilogram less at 10.1 kg (22 lb). According to a recently published manual of avian body masses, the species possesses the heaviest average weight for any living flying bird or animal, ahead of competitors such as trumpeter swans (Cygnus buccinator) and Dalmatian pelicans (Pelecanus crispus). However, another resources claims a mean species body mass of 10.3 kg (23 lb) for the Andean condor. The Andean condor is the largest living land bird capable of flight if measured in terms of average weight and wingspan, although male bustards of the largest species (far more sexually dimorphic in size) can weigh more at maximum. The mean wingspan is around 283 cm (9 ft 3 in) and the wings have the largest surface area (measured in square centimeters) of any extant bird. Among living bird species, only the great albatrosses and the two largest species of pelican exceed the Andean condor in average and maximal wingspan.
The adult plumage is a uniform black, with the exception of a frill of white feathers nearly surrounding the base of the neck and, especially in the male, large patches or bands of white on the wings which do not appear until the completion of the bird's first moulting. The head and neck are red to blackish-red and have few feathers. The head and neck are meticulously kept clean by the bird, and their baldness is an adaptation for hygiene, allowing the skin to be exposed to the sterilizing effects of dehydration and ultraviolet light at high altitudes. The crown of the head is flattened. In the male, the head is crowned with a dark red caruncle or comb, while the skin of his neck lies in folds, forming a wattle. The skin of the head and neck is capable of flushing noticeably in response to emotional state, which serves to communicate between individuals. Juveniles have a grayish-brown general coloration, blackish head and neck skin, and a brown ruff.
The middle toe is greatly elongated, and the hind one is only slightly developed, while the talons of all the toes are comparatively straight and blunt. The feet are thus more adapted to walking, and are of little use as weapons or organs of prehension as in birds of prey and Old World vultures. The beak is hooked, and adapted to tear rotting meat. The irises of the male are brown, while those of the female are deep red. The eyelids lack eyelashes. Contrary to the usual rule for sexual dimorphism among birds of prey, the female is smaller than the male.
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