472 



U. S. P, E. E EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



Comparative measurements of species. 



SPIZELLA MONTICOLA, Baird. 



Tree Sparrow. 



Fringilla monticola, Gm. Syst. Nat. I, 1788, 912. 



Zonotrichia monticola^ Gray, Genera. 



Spinites monticohis, Cabanis, Mus. Hein. 1851, 134. 



Passer canadensis, Brisson, Orn. Ill, 1760, 102. 



Fringilla canadensis, Lath. Index, I, 1790, 434.— Ago. Orn. Eiog. 11, 1834, 511 : V, 504 ; pi. 188. 



Emberiza canadensis, Sw. F. B. Am. 11, 1831, 252.— Apd. Syn. 1839.— Ib. Birds Araer. Ill, 1841, 83 ; pi. 166. 



Spizella canadensis, Bon. List, 1838. — Ib. Conspectus, 1850, 480. 



Fringilla arborea, Wils. Am. Orn II, 1810, 12; pi. xii, f. 3- 



Moineau du Canada, Boffon, PI. Enl. 223, f. 2. 



"Mountain Finch, Lath. Syn. II, i, 265." 



Sp. Ch. — Middle of back with the feathers dark brown centrally, then rufous, and edged with pale fulvous, (sometimes with 

 whitish.) Hood and upper part of nape continuous chestnut; a line of the same from behind the eye. Sides of head and 

 neck ashy. A broad light superciliary band. Beneath whitish, with a small circular blotch of brownish in the middle of tlie 

 upper part of the breast. Edges of tail feathers, primary quills, and two bands across the tips of the secondaries, white. 

 Tertiaries nearly black; edged externally with rufous, turning to white near the tips. Lower jaw yellow; upper black. 

 Length, 6.25 inches ; wing, 3. 



Hab. — Eastern North America to the Missouri ; also on Pole creek and Little Colorado river, New Mexico. 



This species varies in the amount of whitish edging to the quills and tail. 



