Griffon (Gyps fulvus) Science Article 2 abstract To apply modern habitat modelling techniques using generalized linear models approach to generate not only explicative but also predictive habitat suitability models. Ecological factors that could affect the species? nesting habitat preferences at two spatial scales, one referred to the colony as a sampling unit and another trying […]
Category: Accipitriformes
A description of nests and behavior of the Gray-headed Kite.
Grey-headed Kite (Leptodon cayanensis) Science Article 1 abstract The Gray-headed Kite (Leptodon cayanensis), a little-known Neotropical raptor (Blake 1977, Brown and Amadon 1989, de1 Hoyo et al. 1994); occurs in lowland tropical forests from central-eastern Mexico to northern Argentina (Brown and Amadon 1989). Only one nest and two clutches of the species have been described […]
The status of the Gray Hawk in New Mexico
Grey Hawk (Buteo nitidus) Science Article 1 abstract On 23 April 1876, near Fort Bayard, Grant County, New Mexico, Frank Stephens collected two sets of eggs that he identified as those of the Gray Hawk (Buteo nitidus). Through the years this identification has been accepted without question, but my recent study of the matter suggests […]
Aquila Clanga in Asia
Greater Spotted Eagle (Aquila clanga) Science Article 4 abstract There is anecdotal evidence that this species’s small population is declining, at a rate likely to exceed 10% in three generations, which qualifies it as Vulnerable. It has suffered from extensive habitat loss and persistent persecution. Edited by NJ Collar, AV Andreev, S Chan, MJ Crosby, […]
The greater spotted eagle (Aquila clanga): previous, current status and hybridisation in Lithuania
Greater Spotted Eagle (Aquila clanga) Science Article 2 abstract The Greater Spotted Eagle (Aquila clanga) is a globally threatened species. It is included into the Lithuanian Red Data Book as extinct or probably extinct. During fieldwork in 2000n2004 four nonterritorial Greater Spotted Eagles were observed. 261 spotted eagles were described in 161 breeding territories (about […]
Migrations of an adult Spotted Eagle tracked by satellite
Greater Spotted Eagle (Aquila clanga) Science Article 3 abstract On 24th October 1993, we caught an adult Spotted Eagle north of Taif 1 in Saudi Arabia. Its weight was 1,900 g and its wing-length 53 cm. A 48-g PTT was attached as a backpack with teflon ribbon and sewn with biodegradable cotton thread (plate 98).Transmitter […]
On the Biology of the Greater Spotted Eagle (Aquila clanga Pallas 1811).
Greater Spotted Eagle (Aquila clanga) Science Article 1 abstract A study of Greater Spotted Eagles (GSE)(Aquila clanga), was carried out by direct observation from 20 April to 19 August 1997 in the Biebrza National Park in north-east Poland. This study provided information on home range, flight behavior, hunting methods, hunting territory, prey composition, and interaction […]
Genetic differentiation and hybridization between Greater and Lesser Spotted Eagles (Accipitriformes: Aquila clanga, A. pomarina)
Greater Spotted Eagle (Aquila clanga) Science Article 5 abstract Greater and lesser spotted eagles (Aquila clanga, A. pomarina) are two closely related forest eagles overlapping in breeding range in east-central Europe. In recent years a number of mixed pairs have been observed, some of which fledged hybrid young. Here we use mitochondrial (control region) DNA […]
PREDATION ON NESTLING BARE-THROATED TIGER-HERONS BY A GREAT BLACK-HAWK
Great Black Hawk (Buteogallus urubitinga) Science Article 1 abstract Little is known about the diet or hunting strategies of Great Black-Hawks (Buteogallusurubitinga), a widely distributed but poorly known species in Central and South America.In Panama, Wetmore (Wetmore 1965, p. 231) reported that frogs form a principal food source,and that lizards, particularly basilisks (Basiliscus), also are […]
Distribution pattern among Golden Eagle Aquila chrys tos and Bonelli s Eagle Hiera tus fasciatus in the Castellon province.
Golden Eagle (Aquila chrysaetos) Science Article 1 abstract Aims: Spatial distribution patterns of Golden Eagle Aquila chrys tos and Bonelli s Eagle Hiera tus fasciatus have been analyzed in a sympatric Mediterranean area.Location: Castellon province and the Teruel border area, in the M strazgo region. Methods: The nearest neighbor distance has been taken as an […]
