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[63] [64] [65] Cinereous vultures (Aegypius monachus) and bearded vultures (Gypaetus barbatus) are the only larger rational birds that a Steller's sea eagle may encounter in the wild. In other cases, the three eagle species have been observed to feed in close proximity and seem to be outwardly indifferent to each other's presence.
Vultures are scavengers and carrion-eating raptors of two distinct biological families: the Old World vultures (Accipitridae), which occurs only in the Eastern Hemisphere; and the New World vultures (Cathartidae), which occurs only in the Western Hemisphere. Members of both groups have heads either partly or fully devoid of feathers.
A bearded vulture flying over Gran Paradiso National Park, Italy Bearded vulture on the rocks in Gran Paradiso National Park. The bearded vulture is a scavenger, feeding mostly on the remains of dead animals. Its diet comprises mammals (93%), birds (6%) and reptiles (1%), with medium-sized ungulates forming a large part of the diet. [35]
The survival rate of raptorial birds tends to increase with larger body size, with a 30–50% annual loss of population rate in small falcons/accipiters, a 15–25% loss of population rate in medium-sized hawks (e.g., Buteos or kites) and a 5% or less rate of loss in eagles and vultures. The oldest known wild golden eagle was a bird banded in ...
Hooded vulture: Accipitridae: Necrosyrtes monachus (Temminck, 1823) 40 White-backed vulture: Accipitridae: Gyps africanus Salvadori, 1865: 41 White-rumped vulture: Accipitridae: Gyps bengalensis (Gmelin, JF, 1788) 42 Indian vulture: Accipitridae: Gyps indicus (Scopoli, 1786) 43 Slender-billed vulture: Accipitridae: Gyps tenuirostris Gray, GR ...
In contrast most of the Old World vultures possess bare heads without feathers; this is thought to prevent soiling on the feathers and aid in thermoregulation. [ 25 ] The senses of the Accipitridae are adapted to hunting (or scavenging), and in particular their vision is exceptional, with some large accipitrids such as the wedge-tailed eagle ...
The DNA-based proposal and the NACC and IOC classifications include the New World vultures in the Accipitriformes, [7] [11] while the SACC classifies the New World vultures as a separate order, the Cathartiformes. When Cathartiformes is considered a separate order, sister to Accipitriformes, Accipitriformes sensu lato is called Accipitrimorphae.
There have been witnessed accounts of bearded vultures (Gypaetus barbatus) and Spanish imperial eagles (Aquila adalberti) attempting to kill nestlings, but in both cases they were chased off by the parents. [24] There is a single case of a Spanish imperial eagle attacking and killing a cinereous vulture in an act of defense of its own nest in ...