/Demolrs of tbe /Duseum of Comparattpe ZoiJlofl? 



AT HARVARD COLLEGE. 

 Vol. XL. No. (i. 



BREWSTER^S WARBLER 

 (HEL3IINTH0PHILA LEUCOBRONCHIALIS) 



A HYBRID BETWEEN 

 THE CTOLDEN-^YINGED WARBLER {HELMIXTHOPHILA CHRYSOPTERA) 



AND 



THE BLUE-WINGED WARBLER {HEUIIXrilOPHILA PIXUS). 



BY 

 WALTER FAXON. 



CAMBRIDGE, U. S. A.: 



IPrtnteJ) for tbe /IMiseum. 



August, 1913. 



