Manx shearwater Morten Thrane Brünnich as "Procellaria puffinus" in 1764. The current scientific name "Puffinus" derives from "puffin" and its variants, such as poffin, pophyn and puffing, which referred to the cured carcass of the fat nestling of the shearwater, a former delicacy. The original usage dates from at least 1337, but from as early as 1678 the term gradually came to be used for another seabird, the Atlantic puffin. The current English name was first recorded in 1835 and refers to the former nesting of this species on the Isle of Man. The Manx shearwater is with a wingspan and weighs
Buller's shearwater blackish also; the two black areas do not meet at the hand however; the area between them is a rather light grey, under bright light it may appear almost white. With the bird facing upwards, the pattern gives the impression of a broken black "M", with light grey interspersing areas. The underside is bright white; on the head the upperside's grey extends town to eye height and the white cheeks may shine up conspicuously, as in the smaller shearwaters of "Puffinus sensu stricto". The rectrices are blackish and the tail is wedge-shaped; bill and iris are dark. Fledged juveniles already