Red-breasted Merganser (Mergus serrator)
White-winged Tern (Chlidonias leucopterus)
Noticeably smaller and more slender than Goosander. Bill much thinner, especially at base. Both sexes with more shaggy crest than Goosander. Male: dark head, white collar. Only sawbill with (medium) dark chest. Female differs from Goosander by smooth transition from brown head to grey lower neck, and less contrasting white throat patch. Striking white wing-bars with crossing black stripe visible in flight.
Sound:Female call a harsh "karr karr". Male display sound a three-syllabic, fast, "chi-ka-wee" slightly resembling Goldeneye.
Female:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-photo:JanetandPhil, Licence,Link,
CC-photo:JanetandPhil, Licence,Link,
Sounds:Recorded by Jelmer Poelstra,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.