Tufted puffin Latin "fratercula", friar, a reference to the black and white plumage which resembles monastic robes. The specific name "cirrhata" is Latin for "curly-headed", from "cirrus", a curl of hair. The vernacular name "puffin" – puffed in the sense of swollen – was originally applied to the fatty, salted meat of young birds of the unrelated species, the Manx shearwater ("Puffinus puffinus"), formerly known as the "Manks puffin". It is an Anglo-Norman word (Middle English "pophyn" or "poffin") used for the cured carcasses. The Atlantic puffin acquired the name at a much later stage, possibly because of its similar nesting habits,
Chagos Marine Protected Area Chagos are considered to be of international importance. The archipelago harbours eighteen different species of breeding birds and ten of its islands have been designated as Important Bird Areas (IBAs) by Birdlife International, making the region the most diverse breeding seabird community in this tropical region, though the presence of human-introduced rats on several of the other islands severely hinder seabird nesting on these. Five species are considered to be breeding in internationally significant numbers: the sooty tern ("Sterna fuscata"); the brown and lesser noddy ("Anous stolidus" and "Anous tenuirostris"); the red-footed booby ("Sula sula") and the wedge-tailed shearwater ("Puffinus