176 



BIRD STDDIES WITH A CAMERA 



vigorously screeching for food, to others half grown 

 and with the natal down almost entirely replaced by 

 the first winter plumage. The parents were still in 

 attendance on the oldest birds^ and no young were 

 seen in the water. 



91. Kittiwakes and young on nest. From tlie crute. 

 detail of No. 85. 



An enlarged 



Razorbills, perhaps because the Rock contained 

 comparatively few of the sheltered nooks they re- 

 quire for nesting sites, were less abundant than 

 Murres. Their downy young were much lighter in 

 color than the young of the Murres, and their high 

 squealing whistle could easily be distinguished from 

 tlie screech of the young Murres. Of two specimens 

 which had nearly completed the acquisition of their 

 winter plumage, one had the white line from the eye 

 to the bill so characteristic of the adult fully devel- 

 oped, while in the other it was wholly wanting — a 



