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:

White forehead with white wedge above eye in all plumages. Legs, and most of bill yellow in adult breeding plumage. Very small and longwinged tern. Only 2/3 of size of Common Tern. Head and bill proportionally longer than Chlidonias species and congeners, while tail is shorter. Back paler grey and belly whiter. First primaries form a dark front edge to wing. In winter the bill darkens, legs turn a dirty yellow and the white forehead expands. Juvenile resembles adult winter, but has yellowish bill base and scale patterned back. Flight fluttering with rapid wing-beats, which together with size, is usually sufficient to determine the species.

Sound:

Fairly distinct voice. Contact call a sharp "kitt", often combined to form undulating, rolling series. Not as sharp and penetrating as Common- and Arctic Tern.

Contact call:

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-photo:Lars Buckx, Licence,Link.