554 PUFFINIDAE 
Adult female nuptial.—Similar to the male plumage. 
Adult winter, male and female.—Similar to the nuptial 
plumage. 
Immature, male and female.— Resembles the adult 
plumage. 
Brak. Dark brown, lighter at the base of the lower 
segment. 
Freer. Blackish on the outer side, shading from hazel 
to purple-grey on the inside. 
Irtprs. Dark brown. 
AYERAGE MEASUREMENTS. 
TOTAL LENGTH... ... 18 in. Female smaller. 
WING ... ee sae ee as 
BEAK. “22 as xi ZS ate 
TAR SO-METPATAR SUS: se 2role 
HGE < ane er. Be Dani at, 
MANX SHEARWATER. Pujffinus! anglorwm (Temminck). 
Coloured. Figures.—Gould, ‘ Birds of Great Britain,’ vol. v, pl. 
84; Dresser, ‘ Birds of Europe,’ vol. viii, pl. 615, fig. 1; 
Lilford, ‘Coloured Figures,’ vol. vi, pl. 60. 
The Manx Shearwater is common and widely distributed 
around our coasts, on seas adjacent to its breeding haunts, 
especially in spring and summer. However, it may be met 
with at other seasons of the year, and I have observed it in 
small numbers in midwinter (January), in the Irish Channel. 
The curious figure of this bird as it skims over or dips 
into the troughs of the waves, coupled with its wide spread 
of wing, are points which serve to distinguish it easily 
from the Guillemot or Razorbill which it resembles in size 
and colour, and with which it often associates. At times it 
inay be seen swimming, and even ‘rushing’ under water 
with outspread wings in an oblique direction, but I ques- 
tion if it goes very deep, though an immersion may last 
! Ray confounded young Shearwaters from the Isle of Man with the 
young of the Puffin. Hence the origin of the generic name ‘ Puffinus,’ 
which has been adopted not only for this but for other Shearwaters, and 
is, no doubt, misleading. 
