Appearance:

Largely unmistakable, but might be mistaken for an egret when at a distance. Differs from these in bill-shape and in neck held straight (not retracted) in flight. Plumage white with yellowish half collar and neck tuft in breeding season. Bill and legs dark. Immature birds with black tips to primaries and pinkish bill. Characteristic feeding behaviour with sweeping bill-motions from side to side. Wing-beats slower than Glossy Ibis, and flocks generally fly in single file.

Sound:

Mostly silent, and of little use for identification. Soft utterances can be heard when feeding, and when interacting at nest.

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

CC

CC-photo:Agustín Povedano, Licence,Link.

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.