Bearded vulture
The bearded vulture (Gypaetus barbatus), also known as the lammergeier (or lammergeyer) or ossifrage, is a bird of prey and the only member of the genus Gypaetus. This bird is also identified as Huma bird or Homa bird in Iran and north west Asia. Traditionally considered an Old World vulture, it actually forms a minor lineage of Accipitridae together with the Egyptian vulture (Neophron percnopterus), its closest living relative. It is not much more closely related to the Old World vultures proper than to, for example, hawks, and differs from the former by its feathered neck. Although dissimilar, the Egyptian and bearded vulture each have a lozenge-shaped tail—unusual among birds of prey.
The bearded vulture is the only known vertebrate whose diet consists almost exclusively (70 to 90 percent) of bone. It lives and breeds on crags in high mountains in southern Europe, the Caucasus, Africa, the Indian subcontinent, and Tibet, laying one or two eggs in mid-winter that hatch at the beginning of spring. Populations are residents.
The population of this species continues to decline. Until July 2014, it was classified by the IUCN Red List of Threatened Species as being of Least Concern; it has, however, since been reassessed as Near Threatened.
The lammergeier is sparsely distributed across a vast, considerable range. It can be found in mountainous regions from Europe east to Siberia (Palearctic) and Africa. It is found in the Pyrenees, the Alps, the Caucasus region, the Zagros Mountains, the Alborz, the Koh-i-Baba in Bamyan, Afghanistan, the Altai Mountains, the Himalayas, Ladakh in northern India, western and central China, Israel (Where although extinct as a breeder since 1981, single young birds have been reported in 2000, 2004 and 2016 [10]), and the Arabian Peninsula. In Africa, it is found in the Atlas Mountains, the Ethiopian Highlands and down from Sudan to northeastern Democratic Republic of the Congo, central Kenya and northern Tanzania. An isolated population inhabits the Drakensberg of South Africa
This species is almost entirely associated with mountains and inselbergs with plentiful cliffs, crags, precipices, canyons and gorges. They are often found near alpine pastures and meadows, montane grassland and heath, steep-sided, rocky wadis, high steppe and are occasional around forests. They seem to prefer desolate, lightly-populated areas where predators who provide many bones, such as wolves and golden eagles, have healthy populations.
In Ethiopia, they are now common at refuse tips on the outskirts of small villages and towns. Although they occasionally descend to 300–600 m (980–1,970 ft), bearded vultures are rare below an elevation of 1,000 m (3,300 ft) and normally reside above 2,000 m (6,600 ft) in some parts of their range. They are typically found around or above the tree line which are often near the tops of the mountains, at up to 2,000 m (6,600 ft) in Europe, 4,500 m (14,800 ft) in Africa and 5,000 m (16,000 ft) in central Asia. In southern Armenia they have been found to breed below 1,000 m (3,300 ft) if cliff availability permits. They even have been observed living at altitudes of 7,500 m (24,600 ft) on Mount Everest and been observed flying at a height of 24,000 ft (7,300 m).
During 1970s and 1980s the population of the bearded vulture in southern Africa declined however their distribution remained constant. The bearded vulture population occupies the highlands of Lesotho, Free State, Eastern Cape and Maloti-Drakensberg mountains in KwaZulu-Natal. Adult bearded vultures utilise areas with higher altitudes, with steep slopes and sharp points and within areas that are situated closer to their nesting sites . Adult bearded vultures are more likely to fly below 200m over Lesotho. Along the Drakensberg Escarpment from the area of Golden Gate Highlands National Park south into the northern part of the Eastern Cape there was the greatest densities of bearded vultures.
Abundance of bearded vultures is shown for eight regions within the species' range in southern Africa. The total population of bearded vultures in southern Africa is calculated as being 408 adult birds and 224 young birds of all age classes therefore giving an estimate of about 632 birds.
Reference
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