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Autologin:


Great Shearwater (Ardenna gravis)

Appearance:

Large shearwater with distinct, marked, dark cap and white collar. Blotched belly and underwings. White upper tail-coverts forms a horseshoe mark, but note that Cory's Shearwater may show the same. Dark patch at side of neck. Bill dark. Flight action powerful, with alternating glides and rapid bursts of beats with stiff wings. Seldom soars.

Sound:

Calls at breeding ground a deep, soft, moaning "oooh-aahh" ("surprised or shocked old lady"). Tone fairly clear, and pitch rising and falling.

Distribution:

IUCN Redlist Map

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

CC



Facts:

Length (cm):
43-51
Wingspan (cm):
100-118
Weight (gram):
715-950
Size group:
Crow-size
Similar species (image):
Similar species (sound):
Silhouette Group:
Gull-like
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Several different images of the species

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Several different sounds of the species

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