CHECK-LIST OF COLORADO BIRDS 335 



mer resident ; common in mif^fration : goes as far west as 

 base of the mountains. 



560a. Western chipping sparrow. Spizella socialis 

 ARizox.E. Abundant summer resident ; breeds from base 

 of foothills to 10,000 feet. 



56 L Clay-colored sparrow. Spizella pallida. Sum- 

 mer resident ; not uncommon ; scattered over State east of 

 mountains. 



562. Brewer's sparrow. Spizella breweri. Summer 

 resident ; not uncommon ; breeds from plains to 8,000 feet. 



066. "White-winged j unco. Juncoaikeni. Common win- 

 ter resident ; on plains and 8,000 feet up in the mountains. 



567. Slate-colored junco. JuNco hyemalis. Winter 

 resident ; not common ; not found above 8,000 feet. 



o67b. Shufeldt's junco. Junco hyemalis connectens. 

 Abundant winter resident ; most common in southern part 

 of the State ; not uncommon elsewhere. 



567.1. Montana junco. Junco montanus. Winter vis- 

 itor ; not uncommon. 



568. Pink-sided junco. Jlxco mearnsi. Common 

 winter resident ; plentiful at base of foothills in winter ; 

 in spring ascend to 10,000 feet; then leaves the State for 

 the North. 



568.1. Ridgway's junco. Junco annectens. Rare win- 

 ter visitor ; one record. 



569- Gray -headed junco. JuNco caniceps. Abundant 

 resident; breeds from 7,500 to 12,000 feet; sometimes 

 rears three broods. 



570a. Red-backed junco. Junco ph.eonotus dorsalis. 

 Rare migrant ; abundant just south of State. 



573a. Desert sparrow. Amphispiza bilineata deserti- 



