Bird: Aythya ferina (common pochard - Γκισάρι, Κοντούρα)

Aythya ferina (common pochard - Γκισάρι, Κοντούρα)

The common pochard (Aythya ferina) is a medium-sized diving duck.
The adult male has a long dark bill with a grey band, a red head and neck, a black breast, red eyes and a grey back. The adult female has a brown head and body and a narrower grey bill-band. The triangular head shape is distinctive. 
Their breeding habitat is marshes and lakes with a metre or more water depth.
These are gregarious birds, forming large flocks in winter, often mixed with other diving ducks such as tufted duck, with which they are known to hybridise.
These birds feed mainly by diving or dabbling. They eat aquatic plants with some molluscs, aquatic insects and small fish. They often feed at night, and will up-end for food as well as the more characteristic diving.Wikipedia