CATALOGUE OF CANADIAN BIRDS. 77 



Corvus caurinus. 



NORTHWEST CROW. 



A very abundant resident along the coast of British Columbia. 



Picicorvus columbianus. 



CLARKE'S NUTCRACKER. 



This species is abundant in the Similkameen Valley, B. C, 

 and occurs, occasionally, westward to Vancouver Island. 



Cyanocephalus cyanocephalus. 



PINON JAY. 



This species occurs in British Columbia. 



Dolichonyx oryzivorus. 



BOBOLINK. 



A common summer resident from the Maritime Provinces 

 to Manitoba. 



Dolichonyx oryzivorus albinucha. 



WESTERN BOBOLINK. 



This form occurs on the Western Prairies. 



Molothrus ater. 



COWBIRD. 



A summer resident from the Maritime Provinces to the Cas- 

 cades, and north to about the 5oth parallel; most abundant in 

 Ontario and Manitoba. 



