
Photo: Andy Reago & Chrissy McClarren · CC BY 2.0 (May be cropped or resized)
Larus crassirostris
Diet
Fish, crustaceans and refuse
Habitat
Coasts, harbours and offshore islands
Range
East Asian coast
The black-tailed gull is a medium-sized East Asian gull with a yellow bill tipped red and black and a broad black band across the white tail. It frequents coasts, harbours and offshore islands, nesting colonially on cliffs and grassy slopes. Birds take fish and crustaceans at sea and readily scavenge refuse or follow fishing vessels (Wikipedia, general species account). It is Nationally Least Concern (Thailand Red Data 2025).