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:

Fairly large rail with secretive behaviour. Distinguished by long red bill, brownish upperparts, slate grey underparts, and coarsely barred flanks. White and unmarked vent often visible due to frequently used posture with flirted tail. Long legs and toes visible in flight.

Sound:

Varied but distinct. Most heard is the territorial song consisting of short, nasal, sharp grunts "tuck- tuck-tuck", ending with a drawn-out trill rising and falling in pitch "kiiiieeerrrr". Another diagnostic call is heard from excited birds; a longer pig-like shrilling squeal, with waning repetitions. A bit like someone squeezing a rubber toy. Also short and sharp calls "kvii".

Song:

Pig 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 Edmunds Racinskis