Appearance:

Big, goose-sized duck. Gives an overall white impression. Reddish breast-band, dark blackish green head and black flight-feathers. Tip of tail black and adults with dark belly-band. Bill red. Males with red knob at base of bill. Juveniles duller, with white chin and no breast-band. Goose-like flight with slow wing-beats.

Sound:

Male: Various whistling sounds. Often series of ricochet-like "piu" repeated with gradually rising and falling intensity. Also passerine-like "tzzrrrr". Female: different variants on deeper hoarse sounds like "ar-ar-ar-ar" sometimes with accented endings with rising pitch.

Display-call:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

Sounds:Recorded by Louis A. Hansen,http://www.xeno-canto.org ,CC license

CC-photo:Sergey Yeliseev, Licence,Link.

Appearance:

Big and white waterfowl with orange bill and black knob at base of bill. Juveniles more greyish and differs from juvenile Whoopers by all grey bill and black lores. Neck usually held more S-shaped than other swans when swimming. Long tail prominent when upending.

Sound:

Silent compared to other swans. A repertoire of snorting, grunting and hissing sound when interacting. No far carrying sounds. Wings produce prominent singing sound which may function as a flight contact-call.

Social sounds:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-sound:Peter Boesman, Licence,Link.