White-winged Tern (Chlidonias leucopterus)
Broad-billed Sandpiper (Calidris falcinellus)
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.
Can be mistaken for a Dunlin but differs in characteristic double supercilium, unmarked belly and shorter legs. Bill is thicker, almost swollen at base, and more distinctly bent at tip. Overall impression much more contrasty than Dunlin. Winter plumage with dark centres of tertials, and finely striped crown. Juveniles with white V-shaped markings on back, similar to Little Stint. Wing bars and tail markings resembles Dunlin in flight. Moves relatively slow when feeding.
Sound:Distinct contact call. A trilling "drrroiiit" with a peculiar timbre, ending with a rapid rise of pitch. Song often preceded by the contact call, which then fuses into a continuous vibrating trill.
Song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CC