Lesser Grey Shrike (Lanius minor)
Whiskered Tern (Chlidonias hybrida)
In all plumages told from Great Grey Shrike L. excubitor by very long primary projection, stout bill, large rectangular wing patch and extended white at base of tail. Tertials without white edge. Adult birds with black forehead (more extended in male and often speckled grey in female), and a pink wash to underparts (especially male). Immatures lack the black forehead and wing coverts have pale fringes.
Sound:Contact call a series of Magpie-like "che-che-che". Two very different types of territorial song: Most diagnostic is the short song which consists of a single, parakeet-like "irtscha". Like in a sneeze, with rapidly rising and falling pitch. Given monosyllabic, disyllabic or in series. Other song type very varied with lots of mimicry of other birds and mammals. Similar to Woodchat Shrike but usually also includes the call from the short song. The varied song is more subdued in mated males.
Short song:
Varied 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.