BIRDS OP NOBTH AND MIDDLE AMERICA. 



409 



Adults ill (iidu/iii) and v:i.ntei\ — Similar to the spring and summer 

 plumage but white superciliary stripe broader, feathers of forehead 

 more or less (sometimes broadlj'-) margined with white, the gray parts 

 more buffy (that of back, etc. , between smoke gray and hair brown, 

 that of sides and flanks light buffy drab-gray). 



J7>!»i^.— Similar to adults but the black of head and neck duller, 

 white superciliary^ streak much less distinct (pale gray rather than 

 white) and edgings of greater wing-coverts and tertials faintly tinged 

 with pale brownish buff. 



Adnilt ma/^^— Length (skins), 121.5-138 (128.4); wing, 66.5-72.5 

 (70.2); tail, 57.5-65.5 (61); culmen, 9.6-11.5 (10.4); tarsus, 16.5-19 

 (18.2); middle toe, 9.5-11 (10.4).« 



Adult female. —Length, (skins), 113.5-140 (122.8);- wing, 65-72 

 (67.3); tail, 54.5-60.5 (58.7); culmen, 9.5-11 (10.1); tarsus, 16.6-19 

 (17.7); middle toe, 9.5-10.5 (9.9)." 



Mountains of western United States, from the Rocky Mountains to 

 the coast ranges; north to British Columbia (east of Cascade Range), 

 northern Idaho (Fort Sherman), Montana, et?. ; south to western Texas 

 (Davis Mountains), New Mexico, Arizona, and northern Lower Cali- 

 fornia (San Pedro Martir Mountains, Villadares, etc.). 



Parus montanus (not P. cinereus montanus Baldenstein, 1827) Gamhel, Proc. Ac. 

 Nat. Sci. Phila., i, 1843, 259 (Santa Fe, New Mexico); iii, 1846, 155; Journ. 

 Ac. Nat. Sci., Phila., 2d ser., i, 1847, 35, pi. 8, fig. 1.— Cassin, Illustr. Birds 

 Texas, California, etc., 1853, 18. — Woodhouse, in Rep. Sitgreaves Expl. 

 Zuni and Col. R., 1853, 68 (San Francisco Mt., Arizona). — Newbekry, Rep. 

 Pacific R. B. Surv., vi, 1857, 79 (Des Chutes Basin, Oregon). — Baikd, Rep. 

 Pacific R. R.Surv., ix, 1858, 394; Cat. N. Am. Birds, 1859, no. 294; in Rep. 

 Ives' Expl. Col. R., pt. v, 1861, 6 (San Francisco Mt.); Review Am. Birds, 

 1864, 82.— Xantus, Proc. Ac. Nat. Sci. Phila., 1859, 191 (FortTejon, Cali- 



« Twenty-four specimens. 



* Seventeen specimens. 



Specimens from different geographic areas average respectively as follows: 



