Appearance:

Easily confused with Whooper Swan, but yellow on bill restricted to a rounded patch. May sometimes extend towards the bill-tip, but never beyond nostrils. Angle of mouth bold black. Gives a more compact impression than Whooper, due to shorter neck. Head shape noticeably more rounded, and seemingly larger. Juveniles paler grey than Whooper, with the same bill pattern as in adults, but in faint, pale yellow and pink. Flight easy and goose-like.

Sound:

More vocal than other swans. Both higher pitched and deeper sounds. Birds on the water often gives crooning, crane-like notes with less defined pitch. Tone is less full-bodied in these calls. Flight call a deep, yelping, soft barking sound. Each call short, with a "helpless" quality.

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

CC

CC-sound:Peter Boesman, Licence,Link.

Appearance:

May only be confused with Egyptian Goose, but differs in short, dark legs, dark bill, thicker neck, rufous belly and lack of eye-patch. Black and white wings conspicuous in flight as in Egyptian Goose, but lacks thin, black stripe at rear of white coverts. Sexes quite similar. Male with ringed neck in breeding plumage, and female with more contrasting facial pattern. Immature similar to female, but with "dirty" white wing-patches. Less dependent on water than most other ducks.

Sound:

Distinct voice and quite vocal. Nasal, trumpeting, donkey-like calls, often drawn out to a rattling, trill (Chewbacca of Star Wars). Male higher pitched than female.

Call/song:

Distribution:

Xeno-canto: map

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:Hans Matheve, Licence,Link.