Goldfinch (Carduelis carduelis)
Whiskered Tern (Chlidonias hybrida)
Plumage stunningly colourful. Adults easily recognized by red face boldly framed in black and white. In all plumages; black wings with broad yellow panels, forked tail with white patches, and flashing white rump. Bill fairly long and pointed. Juveniles lack the red, black and white head, and are best identified by the contrasting wing-panel and white rump/tail patches. Light and bouncing flight, with bursts of wing-beats and variable acceleration.
Sound:Contact-call distinct, and also constitutes a major part of the song. A sharp and explosive "witt", or "tzee-witt". Sometimes given as a single syllable, di- or trisyllabic, or as continuous series. The song is comprised of rapid series of the contact call, interrupted by drawn-out melodic notes and trills. Other calls: A harsh budgerigar or house martin-like "trrrtt-trrrrt".
Song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSounds:Recorded by Edmunds Racinskis
Largest marsh tern. Liable to confusion with Sterna terns due to black cap, in addition to other marsh terns. All marsh terns (Chlidonias) differs from Sterna by lack of tail streamers, short tail with shallow fork, shorter wings and stiffer flight. Marsh terns don't plunge-dive for food but picks from surface (though Whiskered Tern may belly-plunge), mostly in fresh water. Adult Whiskered Tern easily told from other marsh terns by distinct black cap contrasting to white cheeks and throat. Underwing pale with diffuse dark trailing edge. Belly distinctly darker than Common- and Arctic Tern, but beware of variation in both species. Bill dark blood red. Adult winter: Very pale with no distinct markings except for ill-defined black mask stretching from eye to eye across nape. Forehead white and with crown white speckles. Bill black. Immature: Yellowish brown saddle with coarse dark pattern, though these are moulted in early autumn. Usually lacks dark carpal bar and cap ill-defined. Whiskered Tern generally stockier built than other marsh terns. Both immatures and adult winter show grey rump (different from Common, Arctic and White-Winged), and bill is dagger-shaped (most apparent in males).
Sound:Contact call freely used and fairly distinct: An extremely hoarse, and rasping "krreek" in various moods. Timbre comparable to Corncrake. Sometimes uttered in stuttering series "kr-kr-kr-kr-kr".
Contact call:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-sound:Patrik Åberg, Licence,Link.
CC-photo:Jurrien van Deijk, Licence,Link.
CC-photo:Geert Moris, Licence,Link.