Montagu's Harrier (Circus pygargus)
Arctic Redpoll (Acanthis hornemanni)
Elegant harrier, with slender wings and 4 "fingers". Adult male easily recognized by single black band on upperwing, and double on underwing, and by rufous under wing-coverts. Chest is considerably darker grey than in Pallid Harrier, in contrast to white lower belly. Adult female differs from Hen- and Pallid Harrier by dark upper wing-band (not as prominent as in male). Broad, pale subterminal band on underwing reaching all the way to wing pit. Under wing coverts barred. Immature birds told from Hen Harrier by rufous, almost unstreaked underparts. From Pallid Harrier by dark wing tips and no marked, dark neck sides or pale collar. Beware of moulting Hen Harriers, with 4 "fingers".
Sound:Quite similar to Hen Harrier. Seldom heard, even at breeding ground. Sharp "ke-ke-ke-ke", and various high-pitched whistling sounds.
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
CCCC-sound:Marco Dragonetti, Licence,Link.
Differs from Common Redpoll by white, almost unstreaked rump (young birds may have some streaks). Under tail coverts white, with only very narrow black center, or no black at all. Upperparts greyer, underparts whiter with less prominent streaking. Wing bars brighter. Bill shorter and less deep, and face "flatter". Juveniles difficult to distinguish from Common Redpoll, even when held in hand. Species status debated.
Sound:Very similar to Common Redpoll, but possibly with a softer tone and slightly longer pauses between each syllable. See Common Redpoll.
Distribution:Xeno-canto map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CC