356 CERTHIID^. 



N. Amer. p. 378; Sdat. Cat. Amer. B. p. 15; Baird, Rev. Am. B. 

 p. 88 ; Sdat. Urn, 1865, p. 311 ; Broivn, Ibis, 1868, p. 421 ; Cooper, 

 Oni. Calif, p. 55 ; Baird, Breiv., Sf Ridyw. N. Am. B. p. 120 ; 

 Coues, Birds Colorad. Vail. p. 139. 



Adult male. Entire crown of head, nape, and hind neck greenish 

 ashy brown, ear-coverts and lores darker ; no white superciliary- 

 stripe ; general colour above, including the upper wing-coverts, 

 rich bluish grey ; quills black, both the webs of the primaries white 

 at their bases, externally narrowly edged with bluish grey ; outer 

 webs of secondaries like the back ; terminal half of central pair of 

 tail-feathers blue-grey ; greater part of basal half pure white ; the 

 other pairs with large grey tips, larger white subterminal patches, 

 and the rest black ; edge of wing and inner edge of quills white ; 

 under wing-coverts whitish and blackish ; all the underparts buff, 

 inclining to white towards the cheeks and chin, strongly washed 

 with bluish grey on the flanks. Total length below 4 inches, cul- 

 men 0-57-0-65 ; wing 2-5, tail 1-4, tarsus 0-57. 



Adult female. Like the male in plumage. 



Ifab. Western and Middle Provinces of the United States, and 

 Mexico. 



«, i. c? 2 ad. sk. West side Rocky INfoun- J. K. Lord, Esq. [P.]. 



tains. 



c, d. (S 2 ad. sk. West side Rocky Moun- J. K. Lord, Esq. [P.]. 



tains. 



e. c? ad. sk. California. Purchased. 



/. Ad. sk. California. Lord Walsingham [P.]. 



16. Sitta pusilla. 



Sitta carolinensis minor, Briss. Orn. iii. p. 598, pi. 5 (1760). 



La petite Sittelle a tete bruue, Dauhent. PL JSni. v. p. 314 (1783). 



Sitta pusilla, Lath. Ind. Orn. i. p. 263 (1790) ; Wilson, Amer. Orn. 



ii. p. 105, pi. 15 ; Vieill. Nouv. Did. xxxi. p. 335 ; Less. Traite 



d'Orn. p. 316 ; Swains. Class. B. p. 318 ; Nuttall, Man. i. p. 684 ; 



Audub. Orn. Bioqr. ii. p. 151, pi. 125 ; id. B. Amer. iv. p. 181, 



pi. 249; Bp. a A'i. p. 227; Beichenb. Handb., Semis, p. 153, pi. 614. 



tigs. 3567, 3568 ; Baird, B. N. Amer. p. 377 ; Sdat. Cat. Am. B. 



p. 15; Baird, Rev. Amer. B. p. 88; Sdat. Ibis, 186.5, p. 311 ; 



Coues, Key N. Am. B. p. 83 ; Baird, Breiv., c^ Ridyw. N. Amer. B. 



p. 122. 



Adult. Crown, orbital region, and hind neck light brown ; an in- 

 distinct white nuchal spot; mantle, scapulars, back, upper tail-coverts, 

 and central pair of tail-feathers black, with grey tips and white 

 subterminal patches to either web ; quills and wiug-coverts blackish 

 brown ; external web of secondaries and of most of the coverts 

 washed with the colour of the back ; under wing-coverts grejdsh ; 

 all the underparts, including the sides of the neck, cheeks, and 

 under tail-coverts dull white, strongly washed with grey on the 

 flanks ; bill horny brown ; legs paler. Total length under 4 inches, 

 culmen 0-65, wing 2-5, tail 1*3, tarsus 0-6. 



