Appearance:

Breeding adult easily identified by white tail/rump combined with jet black under wing coverts and silvery upper wing. Immature with brownish back contrasting with pale, silvery upper wings and pale rump. Broad white collar, and lacks dark breast patch of immature Black Tern. Adult winter most liable to confusion with other terns, but upperparts much paler than Black Tern. Contrasting dark outer primaries and secondaries to rest of wing. Often retains some black under coverts even in winter which is diagnostic if seen. Slightly more compact than Black Tern and often recalls Little gull in shape. Bill noticeably shorter and thinner than in Whiskered Tern.

Sound:

Mostly silent away from breeding ground. Most diagnostic call a dry, rolling "krrrrrr-ta-ta" where the rolling is followed by one or two accentuated syllables, or just simply "krrrrrr". Used in excitement.

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

CC

CC-sound:Marco Dragonetti, Licence,Link.

CC-photo:Dick Hoek, Licence,Link.

CC-photo:Lars Buckx, Licence,Link.

Appearance:

Unmistakable in its habitat. Found by waterfalls and fast running streams. A compact and bulky bird with short wings and tail. Plumage black with brownish head (some with brown belly). Most conspicuous feature is the shiny white throat and chest. Juveniles grey instead of black, with dark barring. Constantly bobbing up and down with drooping wings when perched. White eyelid clearly visible when blinking.

Sound:

Contact call a short, metallic and explosive "zrreet", often betraying its presence perched among boulders or when flying up and down a stream. Song a mid tempo, staccato improvisation on contact call-like sounds. Not unlike a budgerigar. Both sexes sing, the female less melodic and more staccato than the male.

Song:

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