Sterna sumatrana
Family: Skimmers, Noddies, Terns, and Gulls · Status: Uncommon resident · Size: 30–35 cm · Conservation: Least Concern
Occurs along the coasts of the Indian subcontinent to southern China, Japan, Southeast Asia, Australia and the western Pacific.
Adult has white head, neck, breast and underparts with a narrow black band from the eyes to hindnape, dark pinkish legs and feet (appearing blackish from distance), all-black bill and whitish-grey mantle and upperwings. Juvenile resembles adult but has blackish subterminal markings on mantle feathers, scapulars and tertials.
Sea-coasts and open seas; locally at Changi, Pasir Ris Park, Pulau Ubin and the Straits of Singapore.
Nests in scrapes on the ground or on bare rock.