182 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. IX. 



SECTION 1. The following species have under parts with more or 

 less yellow : 



Baltimore Oriole (male). 



Head and back, black; throat, black; rest of under parts, orange. 



Icterus galbula (male ) . 

 Baltimore Oriole. 



See No. 230. 



Head and back, brownish black; throat, black; rest of under parts, 

 paler than the male. Icterus galbula (female). 



Baltimore Oriole. 



See No. 230. 



Upper plumage, dull brownish olive ; rump, yellowish olive; entire 

 under parts, yellowish white or pale buffy yellow, faintly tinged with 

 orange. Icterus galbula (immature ) . 



Baltimore Oriole. 



See No. 230. 



