176 BIRD STUDIES 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 the crate. x 2. An enlarged 
detail of No. 85. 
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 
the 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 
