Lammergeier
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Gypaetus barbatus (Linnaeus, 1758) |
The Lammergeier or Bearded Vulture, Gypaetus barbatus, is an Old World vulture, the only member of the genus Gypaetus. It breeds on crags in high mountains in southern Europe, Africa, India and Tibet, laying one or two eggs in mid-winter which hatch at the beginning of spring. The population is resident. Lammergeier have been re-introduced successfully into the Alps, but is still one of the rarest raptors in Europe.
Like other vultures it is a scavenger, feeding mostly from carcasses of dead animals. It usually disdains the rotting meat, however, and lives on a diet that is 90% bone. It will drop large bones from a height to crack them to get smaller pieces. Its old name of Ossifrage (or Bone Crusher) relates to this habit. Live tortoises are also dropped in similar fashion to crack them open.
Unlike most vultures, Lammergeiers do not have a bald head. This huge bird is 105-125 cm (39-49 in)long with a 235-275 cm (92-108 in) wingspan, and is quite unlike most other vultures in flight due to its long, narrow wings and wedge-shaped tail.
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[edit] Description
Adults have a buff-yellow body and head, the latter with the black moustaches which give this species its alternative name. Tail and wings are grey. Juvenile birds are dark all over, and take five years to reach full maturity. Most adult birds compulsively rub mud over their chin, breast and leg feathers, giving these areas a rust colored appearance. Lammergeiers are silent apart from shrill whistles at the breeding crags.
They have a length of 37-41 inches (95-105 cm), with a wingspan of 98-110 inches (250-280 cm), they weigh between 5000 and 7000 grams (11-15 pound). They can live up to 40 years in captivity.
Their habitat is spread over Southern Europe, Africa, the Middle-east, India and Tibet, inhabiting exclusively mountainous terrain (between 500 and 4,000 meters, 1,300-13,100 feet). They breed from mid December to mid February, laying 1 to 2 eggs, which hatch between 53 and 58 days. After which the young spend 106 to 130 days in the nest, before flying out on their own.
[edit] Etymology
The name of the Lammergeier originates from German Lämmergeier, in which language it means "lamb-vulture".
[edit] Miscellaneous
According to legend, the Greek playwright Aeschylus was killed when a tortoise was dropped on his bald head by a Lammergeier, which mistook it for a stone.
A common phrase used in cryptography is "squeamish ossifrage".
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[edit] References
- BirdLife International (2004). Gypaetus barbatus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 09 May 2006. Database entry includes justification for why this species is of least concern
- Nickerson, Colin. "Mighty vulture back from near extinction", Boston Globe, 2006-10-31. Retrieved on 2006-10-31.
[edit] External links
- The Bearded Vulture, Gypaetus barbatus
- The Lammergeier in Spain
- Cine and photo work about the Bearded Vulture in the Alps.