220 FIELD MUSEUM OF NATURAL HISTORY -ZOOLOGY, VOL. IX. 



Under parts, white ; breast, usually more or less tinged with pale 

 brown in winter; greater part of outer tail feathers, white; back 

 and crown, rusty brown, a large part of the wings white, very con- 

 spicuous when flying. . Plectrophenax nivalis. 



Snowflake. Snow Bunting. 



See No. 244. 



Head, chocolate brown ; rest of plumage, greenish black (male) ; 

 general plumage, gray, palest on the throat; no white on wing coverts; 

 crown and rump, like back (female). (This species belongs in 

 Section 10, under Family Icteridae, but might be looked for under 

 this family by mistake.) Molothrus ater. 



Cowbird. 

 See No. 224. 



Family TANGARID^. Tanagers. 



Bill, somewhat fringilline, but having a small 

 "tooth" near the middle of the edge of upper mandible; 

 primaries, 9; tarsus, scutellate ; males, bright colored. 



GROUP 1. Wing, 3.25 to 4.25 inches long. 



PART 1. The following species have more or less of either red, blue, 

 yellow, or green on the under parts: 





Louisiana Tanager. 



