The European storm petrel in Scilly is the only colony in England, with only 1, 398 pairs in 2006.

BBC: Isles of Scilly in rat removal project

The bird, the New Zealand storm petrel, was spotted a short distance off the country's North Island in November.

BBC: NEWS | Science/Nature | NZ seabird returns 150 years on

The project has a number of aims to protect and restore the seabird population - including the storm petrel and the Manx shearwater - for which the UK has a global responsibility, say conservationists.

BBC: Isles of Scilly in rat removal project

The collection contains data on about 900 bird species, some of which -- the Guadalupe storm-petrel, Labrador duck, Guadalupe caracara, great auk, Carolina parakeet and passenger pigeon -- have gone extinct.

CNN: Ninety years of birdwatchers' notes going online