BIRDS OF NORTH AND MIDDLE AMERICA. 459 



Slilta] pudlla pygmsea Ridgway, Bull. Essex Inst., vi, Oct., 1874, 173 (e. slope 



Sierra Nevada). 

 Sitta pudlla . . . var. joj/(/m«Ea Henshaw, Rep. Orn. Spec. Wheeler's Sur v., 1874, 



40 (Utah), 73 (near Fort Garland, Colorado, June; habits), 100 (Inscription 



Rock, New Mexico, July 24; near source of Gila R., New Mexico; habits), 



155 (Arizona). 



SITTA PYGM.ffiA LEUCONUCHA Anthony. 

 ■WHITE-NAPED NUTHATCH, 



Similar to S. p. pyg7nasa, but larger, especially the bill; color of 

 pileum and hind neck grayer, the latter with the buffy whitish or pale 

 buff spot decidedly larger; gray of back, etc., less bluish, and under 

 parts less strongly buffy. 



Adult male.— Length (skins), 95.5-Hl (102.6); wing, 65.5-70 (66.8); 

 tail, 34.5-38.5 (36.7); culmen, 16-17.6 (16.3); tarsus, 15-16.5 (16); 

 middle toe, 11-12 (11.5).« 



Adult female.— Length (skins), 95.5-108.5 (101.8); wing, 65-69.5 

 (67); tail 32.6-37.6 (36.3); culmen, 15-16.6 (15.7): tarsus, 15.5-16.6 

 (16); middle toe, 11.5-12.6 (11.9). « 



San Pedro Martir Mountains, northern Lower California, and 

 northward to mountains of San Diego County, California (Pine Valley, 

 Liaguna, etc.). 



Sitta pygmsea leuconucha Anthony, Proc. Oal. Acad. Sci., 2d ser., ii, Oct. 11, 1889, 

 77 (San Pedro Martir Mta., Lower California; coll. A. W. Anthony); Zoe, 

 iv, 1893, 246 (San Pedro Martir Mts.). ^American Ohnithologists' Union 

 Committee, Auk, vii, 1890, 64; Check List, 2d ed., 1895, no. 730a.— Ridg- 

 way, Man. N. Am. Birds, 2d ed., 1896, 610. 



S[itta'] pygmaea i!«Mconwc/ia Hellmayr, Tierreich, 18. Lief., 1903, 191. 



Family CERTHIID^. 



THE CREEPERS. 



Small "ten-primaried," slender-billed, scansorial acutiplantar 

 Oscines with the bill more or less curved (at least terminally), the 

 hallux (without claw) shorter than outer toe (without claw), the outer 

 toe reaching to or beyond middle of penultimate phalanx of middle 

 toe, the inner toe reaching only to second joint of middle toe or (in 

 Climacteris) not so far; claws largQ, very strongly curved, that of the 

 hallux as long as or longer than the digit (except in Climacteris) ; nos- 

 tril wholly exposed, linear, longitudinal, overhung by a distinct oper- 

 culum; rictal bristles obsolete; tenth (outermost) primary more than 

 one-third (sometimes more than one-half) as long as ninth. 



Bill variable as to relative length and extent of curvature, but never 

 conspicuously shorter than head, nor straight at tip; culmen distinctly 



« Ten specimens. 



