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:

Large, long-winged vulture with slender body and long, diamond-shaped tail. Very different flight-silhouette from any other large raptor in the region. Most similar to Egyptian Vulture (Neophron percnopterus), but note very long tail (longer than wings are broad) and pointed wings. Size difference not always apparent. Adult birds unmistakable when plumage characters are visible. Yellowish head with black mask and "beard". Orangy underparts, contrasting with dark back, wings and tail. Immature birds are dark all over, with pale-tipped coverts. Note that young birds have shorter tail and less pointed wings than adults. Wings held flat when soaring, sometimes with tip pointing slightly downwards.

Sound:

Display call a thin whistling with several register breaks, reminiscent of Honey Buzzard (Pernis apivorus). A passerine-like trill is also sometimes heard, but generally not a vocal bird.

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-photo:Paul Barnard Fotografie, Licence,Link.

CC-sound:Fernand DEROUSSEN, Licence,Link.