Species:

Black-headed Gull (Chroicocephalus ridibundus)

Montagu's Harrier (Circus pygargus)

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Length (cm):
34-37
43-47
Wingspan (cm):
86-99
105-120
Weight (gram):
200-400
227-445
Size group:
Crow-size
Crow-size
Main Texts:
Appearance:

Chocolate-brown hood in adult plumage (seemingly black at a distance), but head only with dark markings in winter and juvenile plumages. Underparts of inner primaries dark grey. First few primaries white with black tip, both on upper side of wing and under. Last character conspicuous in all plumages, but slightly less obvious in juveniles due to larger dark area of wing-tip. Slender-billed Gull and Bonaparte's Gull show similar white first primaries, but differs in long and slender head profile and white underparts of hand respectively.

Sound:

Quite vocal, especially at breeding ground. Distinct, harsh calls. A rasping "kreearr", and shorter, sharp warning calls; "kek".

Contact call:

Error loading Flash for sound!
See sound file


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

Appearance:

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:

Error loading Flash for sound!
See sound file


Distribution:

Wikipedia: map (se also Xeno-canto below)

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-sound:Marco Dragonetti, Licence,Link.

CC-photo:Radovan Václav, Licence,Link.

CC-photo:Radovan Václav, Licence,Link.

Similar species (image):
Similar species (sound):
Silhouette Group:
Gull-like
Silhouette
Raptors
Silhouette
Several different images of the species
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Several different sounds of the species
Error loading Flash for sound!
See sound file