Tuesday, November 15, 2011

Grey-headed Fish Eagle

Grey-headed Fish Eagle

Flying Animal |Grey-headed Fish Eagle | Grey-headed Fish Eagle is a largish stocky raptor at about 70–75 cm in length. Adults have dark brown wings and back, a grey head and reddish brown breast. The lower belly, thighs and tail are white, the latter having a black terminal band. Sexes are similar, but young birds have a pale buff head, underparts and underwing, all with darker streaking. Grey-headed Fish Eagle, as its English and scientific names suggest, is a specialist fish eater which hunts over lakes, lagoons and large rivers.

Grey-headed Fish Eagle

The grey-headed fish eagle is sometimes mistaken for the lesser fishing eagle (Ichthyophaga humilis); however, the grey-headed fish eagle can be distinguished by its darker, duskier plumage and its tail, of which the last two-thirds of the tail are white, compared to the lesser fishing eagle which has a darker tail with no obvious white banding.

Grey-headed Fish Eagle

The calls of the grey-headed fish eagle include loud gurgles to the tune of awh-awhr and chee-warr repeated five to six times, and owlish oo-wooks. Somewhat disturbingly for other jungle inhabitants, the vocal range of this bird also includes a high-pitched scream.


Grey-headed Fish Eagle


Range
The range of the grey-headed fish eagle extends from India, Nepal, Sri Lanka, east through Southeast Asia, to the Philippines and Sulawesi.


Threats
Although not currently considered to be threatened with extinction, the population of grey-headed fish eagles is declining – the result of numerous and varied threats. The loss of suitable wetland habitat, over-fishing, and pollution result in a loss of nesting sites and reduced food supply. In addition, the construction of dams on the Mekong River is likely to affect the flood regime of the Tonle Sap lake, negatively affecting the grey-headed fish eagle population residing there.
Grey-headed Fish Eagle