Scientific Name: Hydroprogne caspia
Malay Name: Camar Raya
Chinese Name: 红嘴巨鸥
Found from northern Africa to Europe, temperate Asia, Australasia and North America with northern populations wintering along the coasts of Africa, southern Europe, Middle East, Indian subcontinent, southern China, Southeast Asia, West Indies and northern South America.
Size: 48-55 cm
Identification: The largest of the tern species. Non-breeding adult has diagnostic thick red bill, mostly black crown, nape and mask with whiter, dark-mottled forecrown and black subterminal marking on bill-tip. Breeding adult has all black forehead to nape and mask. First winter bird resembles non-breeding adult but has darker secondaries, primary upperwing-coverts and tail.
Habitat: Coastal pools, mudflats and sandflats.
Behaviour/Ecology: Forages by hovering over shallow waters and plunge-dives when a fish is spotted.
Local Status: Very rare passage migrant
Conservation Status: Least Concern (IUCN 3.1)
Location: Last sighting was at Mandai Mudflat in January 2011.
Craig Robson (2011) A Field Guide to the Birds of South-East Asia