Appearance:

Large Sylvia with dark hood and pale iris (adult birds). Lacks red orbital ring of Sardinian Warbler. Tertials and coverts without pale fringes. Very similar to Eastern Orphean Warbler (S. crassirostris), but generally the distribution of the two do not overlap. Typical birds also show some differences in plumage like; no dark centres to under tail coverts and warm buff underparts, flanks and vent (variable). The border between the dark hood and grey neck is more diffuse, the back is browner and the bill slightly shorter. Young vagrants with poorly developed characters may be inseparable from S. crassirostris by appearance. Both species differ from Lesser Whitethroat by; stronger bill, no white crescents around eye and darker upper tail. Movements less agile than smaller congeners.

Sound:

Alarm call a short and sharp "tek" recalling Blackcap, often given in series. Also a dry, rasping "turrrr". Both calls are more or less identical to S. crassirostris. Song much more different from latter, but timbre of fluting sounds is similar, recalling that of Blue Rock Thrush. Overall the song is simpler than S. crassirostris, with shorter phrases, longer pauses and a more restricted register. Motifs consists largely of pleasant fluting, often dominated by alternation between two notes, and are often repeated with small variations.

Song:

Distribution:

Xeno-canto: map

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-photo:Agustín Povedano, Licence,Link.

CC-photo:Jorrit Vlot, Licence,Link.

Appearance:

Large tern with black bill, with yellow tip (adults). Bill all black in juveniles. Long black cap and shaggy crest. Generally leaves a much whiter impression than other terns in the region (except Roseate Tern). Adult summer: Yellow bill-tip. Tail pure white, and upperparts pale grey. Outer primaries darker than rest of wing, and contrast increases in worn plumage. Broad white trailing edge to inner wing. Underside of primaries with faint narrow dark trailing edge. Forehead white in adult winter and first winter plumage. Juveniles: scaly upperparts and dark bill. Less evenly coloured than juvenile Gull-billed Tern. First winter birds similar to juveniles, but back purer grey and bill shorter. Can be mistaken for Gull-billed Tern, but note different profile. Flight powerful with evenly narrow wings and a front-heavy appearance, due to the long head and bill. Often dives from high above the surface and stays under water longer than Common and Arctic T.

Sound:

Contact call a sharp and grating "keeree-eek". Often compared to the pressing of amalgam into a tooth.

Contact call:

Distribution:

Xeno-canto: map

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-photo:Paul:Ritchie, Licence,Link.

CC-sound:Peter Boesman, Licence,Link.