CRESTED AND DUSKY AUK. 



fJ| 



A. 



Alca Criftatella, Pallas Spicil. Zool. fafc. v. 18. tab. Hi. — Latham; iii. 



With a fcarlet bill : upper mandible convexj and end hooked; 

 and near the angle of the mouth a fcarlet heart-fhaped fub- 

 ftance : on the forehead rife fome upright feathers ; and above that 

 a fine creft of longer feathers, curling forwards : head and neck 

 black : behind each eye hang a few narrow feathers : back black, 

 marked with dufky ferruginous ftrokes : rump hoary : wings footy : 

 under fide of the body of a dufky cinereous call: : legs livid : webs 

 duflcy. Size of the Miflel Thrulli. . 

 Frequent on Bird IJland, between JJla and America. 



434." Crested. 



PlacBo 



Alca Tetracula, Pallas Spicil. Zool. fafc. v. 23. tab; iv. — Latham.) iii. 



-A With a fmall arched bill, dufky and yellow : above the bafe, on 

 the forehead, the feathers divide into two points : beyond 

 each eye is a whitilh defcending line, in which are a few fetaceous 

 feathers : general color of the bird duflcy : belly hoary : on the hind 

 part of the head and neck, and near the tail, a iz'^ rufty marks : tail 

 very fhort, duflcy, and fome of the feathers tipt with ferruginous : 

 legs livid : webs intenfely black. Length eleven inches. Extent 

 eighteen. 



Frequent about Kamtfchatka, the Kurik ifles, and thofe fituated 

 towards America. Live in flocks on the rocks ; but appear at fea 

 folitary : mofl: ftupid, and clumfy. Can fcarcely fly; or Hand, except 

 they refl: againft the rocks, where they lodge in the fiflures the whole 

 night, or in burrows, which they make with great facility. They fwim 

 and dive admirably well. Are exceedingly bad food ; but are eaten 

 by the almoft-famiflicd natives. 



435. DUSKT. 



Plack. 



3U 2 



L. GUIL- 



