Atlantic puffin Medieval Latin "fratercula", friar, a reference to the black and white plumage which resembles monastic robes. The specific name "arctica" refers to the northerly distribution of the bird, being derived from the Greek ἄρκτος ("arktos"), the bear, referring to the northerly constellation, the Great Bear. 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 Manx shearwater ("Puffinus puffinus"), which in 1652 was known as the "Manks puffin". It is an Anglo-Norman word (Middle English "pophyn" or "poffin") used for the cured carcasses.
Christmas shearwater and introduced black rats took eggs and chicks. In 1985, the population on Sala-y-Gómez, a nature sanctuary, was estimated at 5,000. With its wide range and considerable numbers, the Christmas shearwater is considered a species of least concern by the IUCN. Christmas shearwater The Christmas shearwater ("Puffinus nativitatis") is a medium-sized shearwater of the tropical Central Pacific. It is a poorly known species due to its remote nesting habits, and it has not been extensively studied at sea either. It is one member of a very ancient lineage of the small "Puffinus" species. Its only close living relative is the