PASSERES CORVIDAE P. CANADENSIS VAE. CAPITALIS. 339 



ground, hunting for seeds, berries, and insects ; but the species seems to be 

 rather more arboreal in its habits than any others of the genus with which 

 I am acquainted. The notes are essentially garruline in character, but 

 are surprisingly weak for the size of the bird, which is far less noisy than 

 others of the family. At Camp Grant, they were rather more common, fre- 

 quenting about the same localities. They were quite shy, showing little or 

 no curiosity, but, on discovering my presence, would immediately make a 

 hasty retreat through the trees, and it was only when thus disturbed that 

 their cries were heard. In New Mexico, I observed the species as far north 

 as Camp Bayard. Hitherto known but from two localities in New Mexico, 

 viz, Fort Buchanan and the Copper Mines. In summer, its northward range 

 is probably limited to about latitude 34. An immature bird, just moulting 

 the nesting plumage, has the blue of the upper parts mixed with dull-ash. 

 The lower mandible is flesh-colored ; the upper mandible flesh-colored at tip. 

 Bill of adult black ; of immature birds black, varied with flesh-color. 

 In this variety, I believe the adult birds always possess the black unicolored 

 bill, while in the young it is variegated. 



PERISOEEUS CANADENSIS (Linn.), var. CAPITALIS, Bd. 

 Rocky Mountain Gray Jay; 



PLATE XIII. 

 Perisoreus canadensis, BD., P. R. B. Hep., Beckwith's Route, x, 1857, 14. HAYD., Rep., 



18C2, 171. STEV., U. S. Geol. Surv. Terr., 1870, 403. ALLEN, Bui. Mus. 



Comp. Zool., 1872, 179 (Colorado ; Utah). MERRIAM, Bui. Mus. Coinp. Zoo!., 



1872, 689 (Idaho and Wyoming). 

 Perisoreus canadensis var. capitalis, RIDG., Bui. Essex Inst., v, 1874, 199. BD., BREW., 



& RIDG., N. A. Birds, ii, 1874, 302, pi. 41, f. 4. HENSHAW, An. Lye. Nat. 



Hist.N. Y.,xi, 7. Id., An. List Birds Utah, 1872, Wheeler's Exped., 1874, 



40. CouES/Birds Northwest, 1874, 221. Id, Check-List, 1874, app. No. 239a. 



