Appearance:

Same size as Mute Swan. Adults pure white and juveniles greyish. The bill is black with a yellow wedge reaching well beneath the nostrils. Juveniles differs from Mute Swan in lacking black lores, and having a pink tinge to the grey bill.

Sound:

Quite vocal. Trumpet-like clear honks of half a second length most frequent in flight and take-off/landing. Often voiced with a register break.

Contact 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

Sounds:Hannu Jännes,http://www.xeno-canto.org ,Creative Commons Attribution-NonCommercial-ShareAlike 4.0

Appearance:

A very large, long and slender bird. Bigger than Grey Heron. Plumage grey, with contrasting black throat and flight-feathers. White sides of neck. Tertials forms fluffed, ostrich-like rear end. Red crown visible at close range. Easily told from herons in flight by the straight neck. Juveniles with rufous head, lacking the marked pattern of adults.

Sound:

Powerful, resonant and bugling "kriiiiioooo" in various forms. Very far reaching. Often heard in duet where the female immediately answers the male call at a slightly deeper pitch. Also very vocal when flocks meet.

Call, male/female:

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:Piotr Szczypinski, Licence,Link.