Elegant, dark-hooded gull, restricted to coastal East Asia. Small but stout-bodied and long-winged, with a dark bill in all plumages. Adult has a black head in breeding plumage; in all adult plumages, note distinctive white wingtips, unlike Black-headed. Black-headed Gull is generally similar, but larger, with a longer reddish bill and sturdier structure. Juvenile and first winter have black bill, unlike young Black-headed, which has pale reddish or yellowish bill base. Call distinctive, a high-pitched, ternlike “kee-eek.”