Mistle Thrush (Turdus viscivorus)
Whiskered Tern (Chlidonias hybrida)
A large, and often shy, thrush. Most similar to Song Thrush. Other than size, it is distinguished by a long tail with white corners, white under wing-coverts and a pale, vertical cheek patch. Underparts are boldly covered in round (not arrow-shaped) spots that forms a dark patch on each side of upper chest. Rump slightly paler than the olive back. Noticeably bulkier than Fieldfare, with a heavier bill. Posture upright when foraging on ground, and head seems paler than the back. Flight non-undulating, but with alternating bursts of wing-beats and glides with folded wings. Often flies high.
Sound:Song loud, far reaching and melodic. Most similar to Blackbird, but pitch is higher, phrases shorter (3-6 notes) and most notably, pauses between phrases are much shorter. All which gives the song a much more hurried feel than that of the Blackbird. Timbre is thinner and slightly shivering, and tonal range more limited. May have recurring favourite motifs, but does not repeat phrases like Song Thrush. Sometimes adds higher pitched parts and imitations. Other calls; a dry rattle, likened to the sound of a piece of wood drawn over a coarse comb, and a Fieldfare-like "chuck".
Song:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCLargest 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.