450 



NA TA TORES. 



ALCAD^E. 



ALCADM. 



THE COMMON GUILLEMOT, 



WILLOCK, OR TINKERSHERE. 



Uria troile. 



Uria troile, Foolish Guillemot, PENN. Brit. Zool. vol. ii. p. 160. 



162. 



MONTAGU, Ornith. Diet. 



BEWICK, Brit. Birds, vol. ii. p. 188. 

 190. 



FLEM. Brit. An. p. 134. 

 SELBY, Brit. Ornith. vol. ii. p. 420. 

 JENYNS, Brit. Vert. p. 258. 

 GOULD, Birds of Europe, pt. ix. 

 Guillemot a capuchon, TEMM. Man. d'Ornith. vol. ii. p. 921. 



URIA. Generic Characters. Bill of moderate length, strong, straight, pointed, 

 compressed ; upper mandible slightly curved near the point, with a small indenta- 



