17(j 



BIRD STUDIES WITH A CAMKRA 



vigorously screecliing for food, to others half grown 

 and with the natal down almost entirely replaced by 

 the first winter jjlnniage. The jiarents were still in 

 attendance on the oldest birds, and no young were 

 seen in the water. 



111. Kiuhviil- 



'11 lu-st. Fruni tliu crate. 

 dutail ot No. .^r,. 



An cnliii-gvU 



Razorlnlls, ])erha,ps because the Rock contained 

 coni[)aratively few of the sheltered nooks they re- 

 quire for nesting sites, were less abundant than 

 Murres. Their downy young were much lighter in 

 color tlian the young of the Murres, and their high 

 S(juealing whistle could easily be distinguished from 

 the screech of tlie young Murres. Of two specimens 

 which had nearly CDinpleted the acquisition of their 

 winter plumage, one had the wliite line from the ej'o 

 to the bill so characteristic of tlie adult fully devel- 

 oped, wliile in 1hc othrr it was wholly wanting — a 



