Appearance:

Forked and fairly long tail. Clearly bigger than Storm Petrel, with more slender appearance and longer wings. Generally not as black, and shows brownish tone to plumage. The white rump patch is oval, has a weak grey center stripe, and does not reach as far down on the sides as in Storm Petrel. Light grey upper greater coverts form a wing-band. Underside of wings all dark. Flight pattern variable, with frequent changes in direction and speed. Sometimes glides like a shearwater but at other times shows surprisingly deep wing-beats. Does not patter surface, but will rest on water. Visits breeding ground only at night, and is usually only seen after storms.

Sound:

Only calls at breeding ground. A series of accentuated cooing, interrupted by a squeaky "inbreath" and a loud, absurd, fanfare-like "kaaa-ka-ka-kaaa-ka".

Calls:

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

CC

CC-sound:Steph, Licence,Link.

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.