Conservationists hope by clearing St Agnes and Gugh, the seabird population will be significantly restored.
He was warned by a RSPB warden that landing on the seabird sanctuary was prohibited and he should not go near the birds.
Two brothers have been found guilty of disturbing of a colony of Britain's rarest breeding seabird on Coquet Island off the Northumberland coast.
After seabird feathers became the ornament of choice for ladies' hats and coats in the 19th century, milliners all but plucked the species clean.
He was warned by a RSPB warden that landing on the seabird sanctuary was banned and he should not go near the 71 breeding birds.
BBC: Derwick and Leslie Ramsey sentenced for bird disturbing
On the dry seabird islands off the South American and South African coasts, immense deposits of bird droppings, rich in nitrogen and phosphorus, had accumulated over centuries.
The Wee Bankie is a rich sandeel ground some 40 kilometres (25 miles) out to sea but still well within the feeding range of local seabird breeding colonies.
The main island, Hirta, once supported Britain's most remote community, with the inhabitants surviving for centuries on the seabird population, subsistence agriculture and eating dishes such as baked puffin.
The Royal Society for the Protection of Birds (RSPB) looks after the colony, which it describes as a "bustling seabird city, with puffins, black guillemots, razorbills and peregrines some of the special residents".
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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.
Other attractions which performed well in 2007 included the Scottish Seabird Centre in North Berwick, which saw an increase in visitor numbers of 26.3%, and St Giles' Cathedral in Edinburgh, which experienced an increase of 21.4%.
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