50 PROCEEDINGS OF THE ACADEMY OF [1893. 



189. Spizella socialis. Chipping Sparrow. 



190. Spizella socialis arizonae- Western Chipping Sparrow. 



The Chipping Sparrows of British Columbia present color char- 

 acters analogous to those already given for Empidonax pusillm and 

 E. pusillus traillii. Measurements of six specimens from Victoria 

 coincide with those of average socialis. In color they are like soci- 

 alis, being darker on under parts than arizonce. In color of upper 

 parts many may be referred to either or both forms with equal pro- 

 priety. In fact, differences between breeding specimens, now before 

 me, of socialis and arizonae, from such widely remote points as Fort 

 Simpson, Philadelphia, California and central Mexico, are so slight 

 and inconstant as to make their separation of questionable import, 

 I would refer all British Columbia specimens collected by Mr. 

 Streator and myself, including those from the coast, to socialis, with 

 the exception, possibly,of six skins collected at Ashcroft, which I 

 agree with Mr. Chapman in calling " intermediates." Average 

 measurements of the eastern and western forms as given by Mr. 

 Ridgway, with those of specimens from Ashcroft and Victoria, are 

 appended : 



191. Spizella hreweri. Brewer's Sparrow. 



I was induced by the unusually sweet song of a "chipping spar- 

 row" in the pine-wood mountains above Ashcroft, to shoot it. It 

 proved the only specimen of Brewer's Sparrow noted during the 

 trip. 



192. Junco hyemalis oregoims. Oregon Junco. 



193. (T) Junco hyemalis shufeldti. Rocky Mountain Junco. 



After comparing my series of thirty Juncos from British Colum- 

 bia and Washington with Mr. Chapman's lengthy discussion of the 

 Streator series, I cannot say that he has characterized any constant 

 differences between eastern and western Cascade forms. The extent 

 of black markings and intensity of color shows itself to be depend- 

 ent mainly on the make-up of the skin and the season in which it 

 was taken, and the white areas on the rectrices of my series show 



