Class II. BLACK BILLED AUK. 511 



the ftrength of their companions, whofe footing is 

 often fo unliable that they are forced down the 

 precipice, and perifh together. 



Alca minor, le petit pingoin. Alca unifulcata. Brunnich, 231. Black 

 Brijfon av.Vl. 92. Tai>.$. 102. Billed. 



Jig. 2. Br, Zool. 137.- 



Alca Pica. Lin.fyft. 210. 



THIS weighs only eighteen ounces : the length Descrxp, 

 fifteen inches and a half: the breadth twenty- 

 five inches. The bill is of the fame form with the 

 Auk's, but is entirely black. The cheeks, chin, 

 and throat are white •, in all other refpects it agrees 

 with the former fpecies : we can only obferve, thae 

 this was fhot in the winter, when the common fort 

 have quitted the coafts. 



When this bird was killed, it was obferved to 

 have about the neck abundance of lice, refembling 

 thofe that infeft the human kind, only they were 

 fpotted with yellow. 



The Alca Balthica of Brunnicb^ No. 115, a vari- 

 ety in all refpects like the common kind, only the 

 under fide of the neck white, is fometimes found 

 on our coafts. 



^uphiti us 



