1890.] 



Mearns, Arizona Mountain Birds. 



2 5* 



Measurements of 12 Specimens of Melanerfes formicivorus bairdi 

 from California. 



Sun Fernando Valley, Cala. . . ) E. C. Thurber 



San Gabriel, California . . . . i " 



California (F. Gruber) Am. Mus. Nat. Hist. 



California (J. Krider) .... " 



Cosumnes River | " 



Newcastle, California George B. Sennett 



Sebastopol, California .... " 



Alhambra, California E. C. Thurber 



San Gabriel, California . . . . | " 



California ] Am. Mus. Nat. Hist. 



Newcastle, California George B. Sennett 



Sebastopol, California . . . . | " 



3i-5 



30 



30-5 



31 



305 



33 -S 



31 -5 



27-S 



285 



29-5 



28 



2S 



Comparative Measurements of the Four Subspecies of 

 Melanerpes formicivorus. 



Average of M.f. bairdi from California (7 males and 5 females) 

 Maximum " " •' " " " " 



Minimum " " " " " " " 



Average of M. formicivorus from S. E. Mexico and Central America* 

 Maximum " " " " " " " " 



Minimum " " " " . " " " " 



Average of 34 specimens of M. f. aculeatus from Arizona 

 Maximum " " " " " " " 



Minimum " " " " " " " 



Average of M. f. angustifrons from Lower California* 

 Maximum " " " " " " 



Minimum " " " " " " 



33-S 

 27-5 



29-S 



3' 



2S.9 



2S-9 

 29 



23 



30-S 

 3'-S 

 29.2 



OBSERVATIONS ON THE AVIFAUNA OF PORTIONS 

 OF ARIZONA. 



BY EDGAR A. MEARNS, M. D. 

 {Concluded from Vol. VII, p. 55.) 



Dryobates villosus hyloscopus. Cabanis's Woodpecker. — Breeds 

 commonly throughout the pine belt, often ascending higher in summer, 

 then preferring aspens to the fir and spruce woods of high altitudes. It 

 very rarely descends to the cottonwoods of the Verde Vallej to fraternize 

 with its smaller relative, Baird's Woodpecker, and only when the moun- 



*Taken from Ridgway's Manual of North American Birds. 



