Sooty Shearwater
Ardenna grisea
The Sooty Shearwater is a rare but regular migrant to British waters, typically seen during the summer and autumn months, particularly in the western and northern coastal areas. It can be spotted in large flocks, often in association with other seabirds, during its passage through British waters.
Field Identification Guide
Use these features to identify Sooty Shearwater in the field.
The Sooty Shearwater can be identified by its dark brown plumage, slender wings, and distinctive white undertail coverts, as well as its relatively small head and long, pointed bill. Its wings are long and narrow, with a noticeable bend at the wrist, and it has a distinctive black stripe that runs along its forehead.
The Sooty Shearwater is slightly larger than a Collared Dove, with a length of around 40-50 cm.
The male Sooty Shearwater has a dark brown back and wings, with a slightly paler brown belly and white undertail coverts, giving it a distinctive two-toned appearance, with no significant seasonal variation.
The female Sooty Shearwater is similar to the male, with no notable differences in plumage.
The Sooty Shearwater's call is a high-pitched, wailing sound, often described as a loud, mournful cry, typically heard at night or during the breeding season.
The Sooty Shearwater is a pelagic bird that feeds on small fish, squid, and crustaceans, often in association with other seabirds, and is known for its gliding and soaring flight style, using wind and waves to cover long distances.
The Sooty Shearwater can be confused with the Manx Shearwater, but can be distinguished by its larger size, darker plumage, and white undertail coverts, as well as its more slender wings and longer bill.
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