BIRDS. PALMIPEDES. 49. 50. 67 



Little Auk. Br. Zool. t. 82. Lewin t. 224. Walcot t. 88. 



Length 9 inches : weight about 4 ounces. 



ZfcV/black : the whole of the head, chin, throat, and nech fometimes 

 black. 



49. URIA. Guillemot. 



231. U.Troile. Blackish-brown, breast and belly white: 

 secondary quill-feathers tipt with white. 



Foolish Guillemot. Lewin t. 221. Donov. t. 28. Walcot /. 96. 



2. Eody fpotted with white. Br. Zool. t. 83. 



Length 17 inches : extent 27 : weight 25 ounces. 



5?'// black, 3 inches long : iris dusky : from the eyes a dusky 

 streak pointing backwards : sides with a few dusky streaks : legs 

 dusky. 



232. U. minor. Black-brown, cheeks and all beneath 

 white; secondary quill-feathers tipt with white. . 



Lesser Guillemot. Br. Zool. t. 83. f. 1. 



Length about 16 inches : weight 18 or 19 ounces. 



Differs from the last, of which it is probably only the younger 

 bird, in having the cheeks, throat, and all underneath white. 



233. U.GryfJe. Black, wing-coverts white :' legs red. 



Black Guillemot. Lewin t. 222. Walcot i. 99. 



Length 14 inches : extent 22 : weight 14 ounces. 



Bill black : mouth yellow-red within: wings with a white fpot, 

 which is fpotted in the young bird ; the fecondary quills tipt 

 with white. 



50. COLYMBUS. Diver. 



234. C. glacialis. Head and neck violet-black : back 

 and wings spotted with white : throat and hind-part 

 of the neck with a white crescent. 



Northern Diver. Br. Zool. t. 84. Lewin t. 227. Donov. t. 58. 



Length 3 feet 5 : extent 4 feet 8 : weight 12-14 pounds. 



Bill dusky, 4 inches and a half long : iris purplish : head and neck 

 glossy changeable black : sides of the breast with black lines : back 

 /capillars and wing-coverts black with white oblong or round fpots : 

 breast and belly white : quills and tail black : legs black. 



235. C. Immer. Above blackish-brown with paler undu- 

 lations, beneath entirely white. 



Imber Diver. Br. Zool. t. 84. Lewin. t. 228. Donov. t. 99. 



Length 2 feet 7 : extent 4 feet 9 : larger than a goose. 



Bill 4 inches long, dark olive : iris hazel : head and nape brown : 

 front, sides of the neck and cheeks fpeckled with brown : back and 

 wings dark tawny-brown with paler undulate lines : legs dusky. 



236. C. stellatus. Dusky with oval white spots, beneath 

 white : head and forepart of the neck speckled with 

 grey: feathers at the sides, fringed with greyish- 

 white. 



Speckled Diver, Loon. Lewin t. 229. Walcot t. 101. 



Length 27 inches : extent 3 feet 9 : weight near 4 pounds. 



Bill pale horn-colour : iris yellowish-brown ; back part of the 

 neck plain dusky-brown : quills and tail dusky: sides with dusky 

 streaks : legs dusky, greenish-grey inside. 



237. C. arcticus. Head grey : fore-part of the neck 

 violet-black with a short white band, the sides with 

 black and white lines : scapulars and coverts with 

 white spots. 



Black-throated Diver. Br. Z00L U 85. Zemin t. 230. 



