Green Heron (Butorides virescens) Science Article 3 abstract The ‘pumping’ of the Bittern and the ‘cooing’ of the Least Bittern may be classedu nder the head of song,b ut for the Herons as a group there seems to be singularly little recorded in the way of a coUrtShip song CHARLES W. TOWNSEND, The AUK, Vol. […]
SOME OBSERVATIONS IN A GREEN HERON COLONY
Green Heron (Butorides virescens) Science Article 1 abstract This report has to do with some observations made in a Green Heron colony during the seasons of 1921 and 1922. The colony was located in a willow marsh near the north shore of the eastern section of the dam at Lakeview, Kansas. BESSIE PRICE REED, The […]
Green Heron as a Potential Prey Species of the Broad-winged Hawk.
Green Heron (Butorides virescens) Science Article 2 abstract Avian surveys were conducted 21-23 May 1974 in a series of three kettle holes onthe Montague Plain, iu Franklin County, near Greenfield, Massachusetts. Pitchpine (Pinus rigida) dominated the bases and sides of the kettle holes. Ponds,surrounded by a dense growth of meadow-sweet (Spiraea latifolia) and S. tomentosa),were […]
Trematode parasitism as a possible factor in over-summering of Greater Yellowlegs (Tringa melanoleuca)
Greater Yellowlegs (Tringa melanoleuca) Science Article 1 abstract The possible relationship between trematode infestation and over-summering was explored in Greater Yellowlegs (ninga melanoleuca). Birds were collected throughout the year in coastal Venezuela to examine seasonal and age-related variation in digenean trematode infestations. Yellowlegs were infested with eleven digenean genera. Only four genera were common to […]
Serological survey of viral pathogens in bean and white-fronted geese from Germany
Greater White-fronted Goose (Anser albifrons) Science Article 1 abstract Sera from wild geese were tested for antibodies to selected viral pathogens at a resting site for wild waterfowl in Germany. Serum samples from both bean geese (Anser fabalis) and white-fronted geese (Anser albifrons) collected in October 1991 were examined using serological methods licensed for routine […]
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 […]
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 […]
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, […]
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 […]
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 […]