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



GROUP 2. Wing, from 4.75 to 5.50 inches long. 



Upper plumage, grayish 

 olive ; throat, white, streaked 

 with black; rest of under 

 parts (except lower belly), 

 pale chestnut rufous; young 

 birds have the under parts 

 spotted. 



Plane sticus migrator ius 

 Robin. American Robin. 

 See No. 364. 



