i88 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. IX. 



Bill of Bronzed Crackle. 



General plumage, metallic green, purple, and bronze. 



Quiscalus quiscula ceneus. 

 Bronzed Grackle. 

 See No. 233. 



General plumage, black; 



a patch of scarlet red on the shoulder. 



Agelaius phceniceus (adult male ) . 

 Red-winged Blackbird. 



See No. 226. 



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

 buff, brown, and dull white; traces of more or less red on the shoulder 

 (lesser wing coverts). Agelaius phceniceus, and races (immature}. 



Red-winged Blackbird. 



See Nos. 226, 226a. 



Adult birds entirely lustrous black; no red 

 shoulder patch. Immature birds have the upper 

 parts more or less rusty brown and the feathers on 

 the under parts, tipped with brown. 



Euphagus carolinus (male, and immature). 



Rusty Blackbird. 

 See No. 231. 



General plumage, dark slate or brownish slate color; under parts, 



plumbeous slate color. Euphagus carolinus (female, in summer}. 



Rusty Blackbird. 



See No. 231. 



