Blue Rock Thrush (Monticola solitarius)
Pallid Harrier (Circus macrourus)
A slim, medium large thrush attached to rocky terrain, mountains or concrete buildings. Differs from Rufous-tailed Rock-Thrust, Monticola saxatilis in all plumages by long bill, and long, dark tail (not rufous). Bill and tail gives the bird an elongated appearance and profile. The tail reaches far behind the primaries when perched. Male unmistakable if seen well, but note that the bluish tones appears dark grey in unfavorable light. First winter males are barred underneath but gradually turns bluer and more evenly coloured. Immatures and females look alike with grey-brown upperparts and barred underparts, and are generally darker in throat and breast than M. saxatilis.
Sound:Alarm call consists of short, soft whistles. Often two notes in sequence, the second one higher ("pjuu-eee"), and sometimes followed by series of dry "check" sounds. The song is a beautiful, melodious fluting which can be very difficult to distinguish from M. saxatilis. It generally has a more melancholic feel, with more tremulous fluting than the latter, with less lingering in the higher register. The structure is variable and simple, but sometimes more elaborate in song-flight or when including mimicry. Both sexes sing, but male most actively.
Song:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSlender and elegant harrier, with narrow wings and four "fingers". Adult male easily recognized by very pale grey and white plumage, with diagnostic wedge-shaped, black wing-tips (outermost primary grey). Female and immature birds often difficult to tell from Montagu's Harrier and Hen Harrier. Adult female differs from Montagu's by lack of dark band on upper wing, and by diffuse, sooty inner underwing. Pale bands do not reach wingpit, and under coverts are darker. Differs from female Hen Harrier by noticeably slimmer wings (both hand and arm) and only 4 fingers (but beware moulting Hen Harriers). Immature similar to Montagu's with unstreaked, rufous underparts. Differs in pale tips of inner primaries, and dark half-collar and pale "boa".
Sound:Some calls similar to Montagu's and Hen Harrier, but display call quite diagnostic. A thin, vibrating trill "peerrrrrrrr".
Display call:
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