THE LARGE-BILLED GUILLEMOT. 
149 
similar to that of the Foolish Guillemot, with which it associated. No other 
information was transmitted, excepting that it dived and swam like the other 
species. I afterwards sent the skin to my friend the Rev. John Bachman, 
in whose collection it remains. 
No individuals of this species were observed by my party on our way to 
Labrador ; and as the Foolish Guillemot was- abundant on the coast of that 
country, I concluded that the Thick-billed Guillemots which visit our 
eastern seas in winter, set out for the far north at an earlier period than 
the others., I am indebted to Mr. Hewitson of Newcastle, author of the 
“ British ©ology,” for a description of an egg of this bird, which is in the 
valuable, collection of the Messrs. Hancocks, who procured it from Green- 
land. It measures 3s inches in length, by 21 at its broadest part, and is of 
a bluish-green colour, streaked and spotted with black or very dark umber. 
Male, 18*, 30. 
Occasionally procured in Maine. Not very rare off the coast of Nova 
Scotia. Breeds from Hudson’s Bay to the Arctic Seas. 
Uria Brunnichii, Bonap. Syn., p. 424. 
Uria Brunnichii, Brunnich's Guillemot , Swains, and Rich. F. Bor. Amer., vol. ii. p t 
477. 
Large-billed Guillemot, Nutt. Man., vol. ii. p. 529. 
.Large-billed Guillemot, Uria Brunnichii , Aud. Orn. Biog., vol. iii. p. 336. 
Adult Male in winter. . 
Bill shorter than the head, stout, tapering, compressed, acute. Upper 
mandible with the dorsal line slightly curved, the ridge nai'row, broader at 
the base, the sides sloping, the edges sharp and inflected, the tip a little 
decurved, with a slight notch. Nasal groove broad, feathered ; nostrils at its 
lower edge, sub-basal, lateral, longitudinal, linear, pervious. Lower man- 
dible with the angle medial, naTrow, the dorsal line sloping upwards and 
straight, the back very narrow, the sides nearly flat, the edges sharp and 
inflected. 
Head large, oblong, depressed, narrowed before. Eyes of moderate size. 
Neck short and thick. Body stout, rather depressed. Wings small. Feet 
short, placed far behind ; the greater part of the tibia concealed, its lower 
portion bare ; tarsus short, stout, compressed, anteriorly sharp, and covered 
with a double row of scutella, the sides with angular scales ; toes of moderate 
length, the first wanting, the third longest, the fourth longer than the second, 
all covered above with numerous scutella, -webbed, the lateral ones with 
small margins ; claws small, slightly arched, compressed, rather acute, that 
of the middle toe largest, with a dilated inner edge. 
Plumage dense, very soft, blended ; on the head very short. Wings 
