C0M3I0N GUILLEMOT. 347 



inside of tlie nioutli orange ; the irides very dark brown ; 

 head, neck all round, at the upper part, and on the sides and 

 hind part below, the back, tail, and wings, except the tips of 

 the secondaries, sooty black ; lower part of neck in front, and 

 all the under surface of the body pure white ; legs, toes, and 

 their membranes dark brownish-black ; the whole length of 

 male bird about eighteen inches ; the wing, from the wrist 

 to the end of the longest quill-feather, seven inches and a 

 half. Females are rather smaller than males. 



The young Guillemot, on its first appearance, has the chin 

 and the throat in front white, the neck in front below slightly 

 varied with a few black hairs, which are lost on the bird's 

 gaining its first true feathers. 



The figure on the left hand in our illustration was taken 

 from a young bird of the year, killed in its first winter; in 

 this state of plumage they resemble the winter plumage of 

 adult birds in higher northern latitudes, but are distinguished 

 from old birds by their smaller beak ; the throat remains 

 white till the spring-moult produces the appearance observed 

 in our other figure, the ordinary plumage of summer. 



