
Photo: (c) Daniel Z, some rights reserved (CC BY) · CC-BY
Rynchops albicollis
Diet
Small aquatic prey, taken by skimming the surface
Habitat
Rivers, most common on fresh water; breeds on islands and sandy spits
Clutch size
3–5 eggs
Size
40–43cm; wingspan 108cm
It is tern-like but has a short upper mandible and a longer lower mandible, which it ploughs along the water surface as it flies to catch aquatic prey. It is about 40–43 cm long with a wingspan of 108 cm, and very brightly marked in black, white and orange: a black cap and orange bill against a white body with dark upperparts, white forehead and nape, and red legs and feet. Young birds have normal-looking bills, and the lower mandible grows with age (Wikipedia, general species account).
It has a high, nasal, screaming kyap-kyap call but is usually silent, and is most common on fresh water, especially in the breeding season, when it nests in colonies on islands or sandy spits, usually in rivers, where sandbanks are also important for gharials. It lays three to five buff or white eggs blotched and streaked with brown, and may lay some in river terns' nests (Wikipedia, general species account).