HIKDS OK NORTH AND MIDDLK AMKHICA. 



400 



A<hilfs in (III/ iinin n ml irlidi i\ — Siniilai' to the sprini;' and suiniiier 

 plumage but white supciviliary .stripe broader, feathers of forehead 

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

 more bufiy (that of ])ack, etc., between smoke gray and haii- l)i()wn. 

 that of sides and lianks light l)uti'y drab-gray). 



Yoking. — Similar to adults but the black of head and neck duller. 

 whi((> su])erciliary str(>ak uuu-h h^ss distinct (pale gray ratiicr than 

 white) and edgings of grcatcM- wing-cov<M'ts and tcrtials faintly tinged 

 witii pale brownish liutl. 



Adult ///t/A^— Length (skins), 121.5-188 (128.4): wing. (;t).5-T2.5 

 (70.2); tail, 57.5-«;r).5 (61); culmen, 9.5-11.6 (10.4); tarsus, 16.5-19 

 (18.2); middle toe, 9.5-11 (10.4).« 



Adult female.— L&ngth (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..^-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 

 (DaAis Mountains), Ncav Mexico, Arizona, and noi-thei-n Tjowcr ("ali- 

 fornia (San Pedro Martii- Mountains. Villadares. etc.). 



I'liriis iiionliiiiiis (nut /'. ciiiiriwf jiKJiitUHiis Baklenstein, 1827) Gambel, Proc. Ac. 

 Nat. Sci. I'liihi., i, 1S4:;, 259 (Santa Fe, New Mexico); iii, 18-!6, 155; Journ. 

 Ac. Nat. Hci., I'liila., 2il ser., i, 1847, 35, pi. 8, fig. 1.— C.^ssix, Illustr. Birda 

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

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

 Pacific R. R. 8urv., vi, 1857, 79 (Dea Chutes Ba.sin, Drogon). — P>.\iki), 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 (Ban Francisco ^It. ); Review Am. Birds, 

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



" Twenty-four specimens. 



''Seventeen specimens. 



Specimens from different .<rcot,rrapinc areas average respectively as follows: 



