Brunnich's Guillemot. j 49 



greenish colour. Secondaries tipped with white; under parts (except as above) 

 white; the white of the breast extending up on to the front of the neck and 

 terminating in a point, more markedly in some examples than in others. 



The colour of the legs and toes is described in "Yarrell" (4th Ed.) from a 

 bird brought from Iceland, in summer dress, as yellowish-olive on the upper parts, 

 dark brown below, membranes brownish-black. Feet, in a freshly killed 9 , winter, 

 Jan Mayen, were said to be light brown. Bill black. 



Dr. Coues describes this species as resembling U. troile in its changes of 

 plumage. In winter the black of the upper parts is more slaty in hue ; the lores 

 and upper parts of face below the line of the eye, which remain dark, are blacker 

 and less brown than in summer, though those parts retain their velvety character. 



In length examples vary considerably; from 15*5 to 18 inches (and even 

 19/75, see above); the wing from 8"2 to 8'5- The culmen from i'i to 1*4 inches. 

 The height and width of the bill, at the angle of the lower mandible, do not 

 exceed those of large-billed Common Guillemots, viz: '55 and '30, but the upper 

 mandible is wider at the base, and the bill is of course much wider in proportion 

 to its length than that of U. troile. 



In June, 1894, Colonel Feilden saw a pure white example within twenty yards 

 off the ship's side, near Spitsbergen ; and he procured a similar albino example 

 of this species from West Greenland, which is now in the British Museum. 



