ORNITHOLOGY OF GUADALUPE ISLAND. 



299 



16. Spizella socialis arizonae. 



Western Chipping Sparrow. — Returning to camp one 

 noon, I heard the song-note of this species, and was for- 

 tunate enough to secure it. No others were known to be on 

 the island. 



In accordance with the division of >S'. socialis into Eastern 

 and Western forms, this single specimen, taken on Guada- 

 lupe Island, would have to be assigned to the variety ari- 

 zo)ice, but in point of fact it will not answer to the original 

 description (Coue's Key, 187^, p. 143), wherein no measure- 

 ments are given. A later description, however (B. B. & R. 

 Hist. N. Am. B., 1874,Yol. II, p. 11), maybe made applicable 

 to the case of w^estern birds which I have seen from this 

 State by omitting from the original description: "black 

 frontlet lacking, and no definite ashy superciliary line, the 

 sides of the crown merely lighter brown; bill brown, pale 

 below." 



Excepting the bill, which is "brown, pale below," in 

 this instance, the measurements fall within the limitations 

 of arizonce. 



DIMENSIONS OF SPECIMENS. 



17. Junco hyemalis oregonus. 



Oregon Junco. — One bird, which was quite shy, was 

 taken among the pines on a cold, windy day, during which 

 the tops of the trees and part of the timber belt were at 

 times entirely enveloped by fog. When first seen this bird 

 was being viciously attacked by a resident junco {insularis). 



