302 



THE COMMON GUILLEMOT. 



of food like a tern. The Guillemots at the Aquarium rarely 

 stay under the surface more than half a minute, but in the 

 open sea I have known them remain down for a much longer 

 time." ^ 



The Einged Guillemot which is found at St. Abb's Head 

 is distinguished from the Common Guillemot by having a 

 white ring round the eye. Formerly it was considered to 

 be a distinct species, but ornithologists now look upon it as 

 only a variety of the common bird. 



History of British Birds, 1883-85, vol. iii. p. 392. 



