I4O THE CHICAGO ACADEMY OF SCIENCES. 



ward, and it winters from Massachusetts southward on the At- 

 lantic coast and in the Mississippi Valley from Missouri and 

 Illinois southward. 



Genus SPIZELLA Bonaparte, 1832. 



Spizella monticola (Gmelin). Tree Sparrow. 



Fringilla monticola GMELIN, S. N., I, ii, 1788, 912. 

 Fringilla canadensis LATH., Ind. Orn., I, 1790, 434. 

 Spizella monticola BAIBD, B. N. Amer., 1858, 472. 

 Zonotrichia canadensis "LATH." of some authors. 



Popular synonyms: WINTER CHIPPY. CANADIAN SPARROW. WINTER 

 SPARROW. 



The Tree Sparrow is a common winter resident, arriving 

 about the middle of October and departing near the middle of 

 April. 



The range of the Tree Sparrow includes North America 

 east of the Plains, and from South Carolina, Kentucky and the 

 Indian Territory north to the Arctic Ocean. It breeds north of 

 the United States east of the Rocky Mountains, and winters from 

 the northern border of the United States southward. 



Spizella socialis (Wilson). Chipping Sparrow. 



Fringilla socialis WILSON, Amer. Orn., II, 1810, 127, pi. 16, fig. 5. 

 Spizella socialis BONAPARTE, Geog. & Comp. List, 1838, 33. 

 Zonotrichia socialis GRAY, Hand-list, II. 1870, 94, 7397. 

 Popular synonyms: CHIPPY. CHIP-BIRD. HAIR-BIRD. 



A common summer resident, arriving toward the middle of 

 April and departing from the last of September to the middle 

 of October. 



The range of the Chipping Sparrow covers North America 

 east of the Rocky Mountains and from Newfoundland and the 

 Great Slave Lake southward to eastern Mexico. It breeds in 

 Mexico and the Gulf States northward, and it winters in the 

 southern portion of its range. 



Spizella pallida (Swainson). Clay-colored Sparrow. 



Emberiza pallida SWAINSON, in Sw. & Rich., Fauna Bor. Amer., II, 



1831, 251. 

 Spizella pallida BONAPARTE, Geog. & Comp. List, 1838, 33. 



The only record that I have found of the occurrence of this 

 species within our limits is that of Mr. E. W. Nelson, who says:* 

 "A rare summer resident about the borders of prairies. Speci- 

 mens are in Mr. Holden's collection taken near Chicago." 



*Birds of Northeastern Illinois, Bull, of the Essex Institute, Vol. VIII, 1876, 108. 



