Read Edit View history 白腰燕鸥 báiyāoyàn'ōu Aleutian tern Origin Definitions Defs Strokes Stroke Words Sentences Sents 白腰燕鸥 白腰燕鷗 báiyāoyàn'ōu Aleutian tern Aleutian tern (Onychoprion aleuticus)