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Manx Shearwater
Manx Shearwater
Manx Shearwater sites cared for by the Trust
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As it nests underground and only comes ashore at night, colonies are easy to overlook.

The strange calls emanating from underground at the UK’s largest colony on Rum may have given rise to the name of the mountain on which it is situated – Trollival. The nearby colony on Canna has recovered from the verge of extinction in 2004 following a successful project to eliminate brown rats from the island. There is also a large colony on St Kilda.

Food

Small fish, cephalopods, either picked from the surface or by plunge diving.

Nest site

Breeds in burrows on inshore islands and visits nests only under darkness. Also uses crevices in rock or under boulders.

Breeding

April to July and lays one egg.

Wintering

Movements differ of different populations: large concentrations are found of South America.

Distribution

Small fish, cephalopods, either picked from the surface or by plunge diving.

Other Petrel, Shearwater family birds at Trust sites