382 NESTS AND EGGS Of 



563a. WESTERN FIELD StABBOW. Spizella pusilla arenacea Chadb. Geog. 

 Dist.^Great Plains, from Southern Texas north to Wyoming Territory and Ne- 

 braska. 



A new subspecies inhabiting the Great Plains of Western United States. Nesting 

 and eggs indistinguishable from S. pusilla. 



564. WOBiTHEN'S SPARBOW. Spixella icortheni Ridgw. Geog. Dist.— New 

 Mexico (Silver City) and Chalchicomula, Puebla. 



This is apparently a good species, resembling the Black-chinned Sparrow in 

 many respects, particularly the color of the upper parts. The type specimen was 

 taken at Silver City, New Mexico. 



565. BLACK-CHINNED SPARBOW. Spizella dtrigularis (Cab.) Geog. 

 Dist. — Mexico and southern border of the United States from the Lower Rio Grande 

 Valley to Southern California; Lower California. 



The Black-chinned Sparrow is a rather common species in all suitable places 

 from the southern border of the United States southward. It. inhabits the border 

 of thickets, grassy fields and low shrubbery. The nest is usually placed in low 

 bushes, and is made very similar to that of the Field Sparrow. The eggs are light 

 greenish-blue, about the color of the eggs of the Bluebird. The average measure- 

 ment of eight specimens is .68x.50 inches. 



566. WHITE-WINGED JDNCO. Junco aikeni Ridgw. Geog. Dist— Colorado, 

 north to the Black Hills. 



This species is dedicated to C. E. Aiken, of Colorado, It is like the Slate-colored 

 Junco except that the wings are crossed with two white bars formed by the tips of 

 the greater and middle coverets. Breeds in the Black Hills. 



X 567. SLATE-COLOBED JUNCO.. Junco JiyemaUs (Linn.) Geog. Dist.— North 

 America at large, breeding from the Ijigher portions of the AUeghanies, Northern 

 New York and Northern New England to Alaska (except the Pacific coast district, or 

 south and east of the peninsula), south in winter to the Gulf States. 



Better known as the Black Snowbird, and in most of the United States is oftener 

 seen during the winter months. Breeds in the mountains of Northern Pennsylvania, 

 New York, and N6w England; is resident throughout the year in Northeastern Ohio, 

 and in Michigan. Mr. Mcllwraith gives it as a- fairly common resident of Ontario 

 where, in the southern portion, is is known as the "White Bill." Mr. William L. 

 Kells states that in Ontario, the Slate-colored Junco selects various places for nest- 

 ing sites, such as the up-turned roots of trees, crevices in banks, under the sides of 

 logs and stumps, a cavity under broken sod, or in the shelter of grass or other 

 vegetation. The nest is made of dry grasses, warmly and smoothly lined with hair. 

 Mr. Kells says the bird generally begins to nest the first week of May, and nests 

 with eggs are found as late as August. The set of eggs is usually four or five in 

 number, of a whitish color; varying to a greenish-white, more or less speckled with 

 reddish-brown, with an average size of .78x.57. A set of four eggs taken by J. A. 

 Dakin, on May 4, in Onondaga county. New York, measures .75x.50, .76x.56, .78x.b7, 

 .80X.58. A nest of this species was found on the rafters of a barn in Connecticut. 



567o. OBEGON JUNCO. Junco liyemalis oregonus (Towns.) Geog. Dist.— West- 

 ern North America. Breeds along the Pacific coast region from California north' 

 ward to Sitka. 



