Great Crested Grebe (Podiceps cristatus)
White-winged Tern (Chlidonias leucopterus)
Unmistakable in summer plumage with black crest, and black and chestnut tippets. Paler coloured (pinkish) bill than other grebes (also in winter). Gives a slender and more elegant impression. Swims with body low and a stretched slender neck, or with head rested on back. Winter; very pale. Pale, pinkish bill. White area above lores. Front of neck white. Shows white lesser- and median coverts in flight together with white wing-bar.
Sound:Laughing sequences with nasal grunts, a rolling nasal "treaa" and bill-clattering.
Display:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSounds:Recorded by Hannu Jännes,http://www.xeno-canto.org ,CC license
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
Image search Flickr NB! May give other species
CCCC-sound:Marco Dragonetti, Licence,Link.