GUILLEMOT, LITTLE AUK, RAZOR-BILL, PUFFIN 289 



white ; legs and feet black. Length, from bill to 

 end of tail, seventeen inches. 



The female is similar in plumage to the male, and 

 not to be distinguished at sight. 



In winter, the upper part of head and nape of 

 the neck are greyish-black ; throat and sides of 

 head white, with a dusky band behind the eye. 

 Other parts very like the summer plumage. 



THE PUFFIN. 



(Fratercula ardica.) 



MALE. The bill has three curved furrows on 

 each mandible. The basal rim and first ridge of 

 the upper mandible are yellow ; the space between 

 greyish-blue ; the basal margin of the lower mandible 

 bright red ; the first ridge, and the space between, 

 as in the upper ; the rest carmine. The wrinkled 

 membranes at the base of the bill are yellow ; the 

 margin of the eyelids vermilion. Upper parts are 

 black on the back, glossed with blue of a greenish cast. 

 From the back of the hind- neck a band of blackish- 

 grey crosses the neck. The sides of head, from 

 over the eye to the throat, are white ; the cheeks 

 tinged with grey, also the throat. The lower parts 

 are white ; legs and feet vermilion. Length, from 

 bill to tail, twelve inches. 



The female is not to be distinguished from the 

 male by sight. 



o 



