Appearance:

A small, dark goose. Thin white collar on adults, juveniles with all black neck. Seems all black from a distance, except for the white vent. Easily told from Barnacle Goose by the lack of contrast between neck and belly, even at long distance. Subspecies hrota, bernicla and nigricans can be distinguished by plumage characters. B.b.hrota: Brownish rather than dark grey belly, and pale between legs. B.b.bernicla: Grey part of belly also reaching behind and between legs. B.b.nigricans: Almost black belly. "Necklace" more distinct, reaching to the front of neck.

Sound:

A bubbling, trembling, ascending, three syllable "ahrahrrhit", quite different from other geese.

Contact call:

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

Sounds:Recorded by Jens kirkeby,http://www.xeno-canto.org ,CC license

Appearance:

Variable plumage, but not as varied as Buzzard. Prominent black carpal patches and broad black terminal band on tail in all plumages. Upperparts dark and speckled, underparts pale. Head is paler than back, and base of bill paler still. Conspicuous white base of tail, and upperside of tail contrasts with the dark back. Female with big black belly patch, and one broad terminal band on tail. In males the belly patch this is less prominent, and the tail has 1-2 narrow bands in addition to the terminal one. Only other raptor with white tail and broad terminal band in the area is young Golden Eagles. These can be identified by size, and by showing 6 fingers, not 5 as in Buteo (Buzzards). Soars with slightly more raised wings than Buzzard.

Sound:

Most typical call a wailing, mewing "peeoooo". Quite similar to Buzzard, but the pitch falls more evenly throughout the whole call.

Alarm call:

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:Giovanni Boano, Licence,Link.