Grebes- family Podicipedidae
A small, worldwide family of medium to large duck-like water birds. Grebes have pointed bills, short wings, very short tails, long, erect necks, lobd rather than webbed feet and long silky feathers.
Grebes are excellent divers, able to stay under water for several minutes at a time. They feed on fish and water insect and makes nests on rafts of floating vegetation. There are two sepecies in java and Bali.
Key to Javan Grebes
Underparts grey throats in breeding plumage reddish……………………………..
……………………………………………. Tachybaptus ruficollis.
Underparts whitish, throat in breeding plumage back…………………………………………………………………………. T. novaehollandiae