Wyoming Birds. 63 



11213 at Fort Bridger. It is quite probable that it may be 

 common along the eastern border of the state." (Knight.) 

 560a. Spizella paseerina arigonae: Western Chipping Sparrow. 

 Fairly common summer resident over most of the state. 



561. Spizella pallida: Clay-colored Sparrow. 



Knight recorded this as a rather common summer resident, 

 but Blackwelder in his Teton list is the only one who re- 

 ports it. 



562. Spizella breweri: Brewer's Sparrow. 



Very abundant summer resident throughout the state at 

 the lower altitudes and ranges up to almost 9,000 feet. 



566. Junco aikeni: White-winged Junco. 



Reported as fairly common summer resident from the 

 central to the northern portion of the state, and almost a 

 winter resident. 



567. Junco hyemalis hyemalis: Slate-colored Junco. 



Rather uncommon migrant and possibly a summer resident. 



567b. Junco hyemalis connectens: Schufeldt's Jun-co. 



Blackwelder has found it in the Tetons and Percival took 

 a male specimen in June, 1912. These are the only rec- 

 ords of it since Knight's record that it was quite abund- 

 ant in Wyoming during migrations. 



567f. Junco hyemalis montanus: Montana Junco. 



"Possibly a winter resident. But little is known of this 

 species. It is very certain that data originally referred to 

 the Oregon Junco in part belongs to this species. These 

 birds arrive in Laramie about the middle of March and 

 remain for only a few weeks. There is one skin in the 

 University collection that was taken at Laramie, September 

 27, 1898. The National Museum has the following num- 

 bers belonging to this species, that were taken in Wyo- 

 ming: 71114, taken by A. G. Brackett, and 11180 and 11186, 

 taken by Drexel at Fort Bridger." 



567g. Junco hyemalis mearnsi: iPink-sided Junco. 



The most abundant Junco during migration, at least in 

 southern Wyoming. It is evidently a summer resident in 

 the northern portion of the state, but has not been found 

 as such in the southern region. 



