Found 2 items, similar to whistling swan.
English → English (WordNet) Definition: whistling swan whistling swan n : North American subspecies of tundra swan having a soft whistling note [syn: Cygnus columbianus columbianus]
English → English (gcide) Definition: Whistling swan Whistling \Whis"tling\, a. & n. from Whistle, v. [1913 Webster] Whistling buoy. (Naut.) See under Buoy. Whistling coot (Zo["o]l.), the American black scoter. Whistling Dick. (Zo["o]l.) (a) An Australian shrike thrush (Colluricincla Selbii). (b) The song thrush. [Prov. Eng.] Whistling duck. (Zo["o]l.) (a) The golden-eye. (b) A tree duck. Whistling eagle (Zo["o]l.), a small Australian eagle (Haliastur sphenurus); -- called also whistling hawk, and little swamp eagle. Whistling plover. (Zo["o]l.) (a) The golden plover. (b) The black-bellied, or gray, plover. Whistling snipe (Zo["o]l.), the American woodcock. Whistling swan. (Zo["o]l.) (a) The European whooper swan; -- called also wild swan, and elk. (b) An American swan (Olor columbianus). See under Swan. Whistling teal (Zo["o]l.), a tree duck, as Dendrocygna awsuree of India. Whistling thrush. (Zo["o]l.) (a) Any one of several species of singing birds of the genus Myiophonus, native of Asia, Australia, and the East Indies. They are generally black, glossed with blue, and have a patch of bright blue on each shoulder. Their note is a loud and clear whistle. (b) The song thrush. [Prov. Eng.] [1913 Webster]