i86 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. IX. 



General plumage, black, tinged with rusty brown on the crown and 

 back ; the feathers on the under parts, tipped with rusty brown ; under 

 parts, not streaked; no red on shoulder. 



Euphagus carolinus (female and immature in fall). 



Rusty Blackbird. 

 See No. 231. 



General plumage, black, more or less streaked and marked with 

 brown, buff, and dull white; lesser wing coverts (shoulder), dull red. 



Agelaius phoeniceus (young male}. 

 Red-winged Blackbird. 



See No. 226. 



Upper parts, blackish, streaked with brownish buff; under parts, 

 streaked with black ; no red patch on shoulder. 



Agelaius phoeniceus (female}, and races. 

 Red-winged Blackbird. 

 See Nos. 226, 226a. 



Cowbird. 



Head and breast, chocolate brown; rest of plumage, glossy black. 



Molothrus ater (male}. 

 Cowbird. 

 See No. 224. 



General plumage, gray; palest on the throat. 



Molothrus ater (female}. 

 Cowbird. 

 See No. 224. 



