Castle Harbour is the only breeding ground in the world of the famous rare seabird, the Bermuda Petrel or cahow.

BBRC has had particular problems with a number of rare seabirds.

There are over 100 species of birds on Dunk Island, including rare and vulnerable seabirds.

The Short-tailed Albatross or Steller's Albatross (Phoebastria albatrus) is a large rare seabird from the North Pacific.

The Westland Petrel (Procellaria westlandica), also known as the Westland Black Petrel or tāiko, is a rare seabird that nests in New Zealand's forests.

It is often referred to as the world's rarest seabird.

The Spectacled Petrel, Procellaria conspicillata, is a rare seabird that nests only on the high western plateau of Inaccessible Island in the Tristan da Cunha group.

Therefore the headland is favoured by birdwatchers and many travel the length and breadth of Britain to track rare seabirds.

When the bird fledges, the bands will help biologists track this extremely rare and endangered seabird to learn where it will one day go to nest.

Townsend's Shearwater, Puffinus auricularis, is a rare seabird of the tropics from the family Procellariidae.