Black Kite (Milvus migrans)
Hen Harrier (Circus cyaneus)
Medium sized, brown raptor with shallowly forked tail. Juveniles with mottled appearance, due to buffed tips of wing coverts. Easily mistaken for Red Kite, but tail is not that deeply forked, upper side of tail is dark brown and head not so pale (plumage colours overall more uniform). Base of primaries paler than the rest of the underwing (especially in Middle-East birds), but with much less contrast to the black wing tips than in Red Kite. Differs from dark morphed Booted Eagle by the forked tail. Wings held horizontally (separates it from harriers). Typically twists it's tail frequently to maintain position in the air (like Red Kite).
Sound:A piercing, first ascending then descending long "piuuu". Starting as a clear tone then gradually taking on a vibrating character that differs from Red Kite. Also a sharp "kieee -ki- ki-ki". More vocal than Red Kite.
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
CCIn all plumages: Glides with wings raised in shallow V. Shows 5 primaries. This makes the wing tip broader than in Pallid- and Montague's Harriers, and the wings seems shorter. (Note that moulting individuals may show only 4 primaries). Male; grey with black primaries, white rump and underparts, and broad black trailing edge to underwing. Note that subadult males may show partly black primaries like Pallid. Female; brown with white rump, barred tail and streaked underparts.
Sound:Mostly heard at breeding ground. Calls with quite soft series of "ke-ke-ke-ke". Also a wailing, squealing whistle, with emphasized first syllable.
Contact 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
CCSounds:Creative Commons,www.xeno-canto.org,Bruno Durand,http://creativecommons.org/licenses/by-nc-sa/4.0/