Dartford Warbler (Curruca undata)
Arctic Tern (Sterna paradisaea)
Small and slender Sylvia about the size of Lesser Whitethroat. The short wings, steep forehead and striking long tail alone is often enough for positive id. Upperparts dark slate grey, and underparts of male vinous red with finely white spotted throat. Female less brightly coloured with more brownish tones and less red underparts. Immature duller still, with brownish underparts rather than red. Yellow base of lower mandible in all ages and sex. Lacks the white moustache-stripe of Subalpine Warbler. Tail frequently held raised. Skulking behaviour. Prefers scrubs/Gorse and is usually only glimpsed when moving low from bush to bush, or when singing from more exposed perch.
Sound:Contact call a diagnostic, very nasal "chirr", quite different from other Sylvia, and used freely. Warning call a har "tuc". Song similar to Sardinian Warbler, but usually identifiable by frequently interspersed contact calls. Phrases are quite short, and pauses are as long or longer than the actual phrases. Each phrase typicall starts and ends with a more tonal segment than the regular chattering.
Song (with contact call):
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-Photo:Marc Kolkman, Licence,Link.
CC-sound:Peter Boesman, Licence,Link.
CC-photo:chausinho, Licence,Link.
Differs from Common Tern in shorter head, and blood-red bill. Legs shorter, but tail streamers longer (extends well past wings in sitting birds). Underparts of primaries with sharply bordered dark trailing edge (diffusely bordered in Common Tern). Both primaries and secondaries transparent to sunlight. Crest less apparent than in Common Tern and underside greyer. Cheeks white just below the black cap, often in contrast to grey lower cheeks. Juveniles lacks buff coloured back.
Sound:Similar to Common Tern but higher pitched. Typical call a series of high pitched "tip-tip-tip", and longer, ringing, high-pitched "kriiiiii" calls. The drawn out "kree-aaahh" call falls less distinctly in pitch than Common Tern.
Calls:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CC