Appearance:

White secondaries the most striking feature in all plumages. Generally heavy built with large bill, heavy head, thick neck and short tail. Male: black with white crescent below eye and partly orange bill. Female sooty black with variable light patches at lore and cheek. Flaps it's wings with a raised head when on water. Dives without jumping and with wings slightly open. Swimming birds may not always show white secondaries. Tends to form less dense flocks than Common Scoter, often with birds in single file.

Sound:

Seldom heard. Calls: Short accented "tup tup tup" and a shivering "gahhahahaha".

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

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.