BIBDS OF NORTH AND MIDDLE AMERICA. 811 



of white) and without black posterior border, lighter tail-bands much 

 broader, and pale bands on inner webs of remiges indistinct. 



Adults {sexes alike). — Above light bister or deep snuff brown, the 

 forehead and crowm with rather large (mostly roundish, guttate, or 

 cordate) spots of ochraceous-tawny ; a distinct but broken collar of 

 white across lower hindneck; back, scapulars, wing-coverts, and 

 rump irregularly spotted with light ochraceous-tawny, these markings 

 less distinct on back and rump; outermost scapulars largely white, 

 this mostly in form of large < -shaped markings ; middle and greater 

 \ving-coverts with a large terminal spot of buffy white, mostly on 

 outer web, these white spots preceded by a dusky bar; remiges crossed 

 by transverse series of large cinnamon-buff spots, these largest and 

 most distinct on primaries; tail crossed by about six mterrupted 

 bands of cmnamon-buff or light cinnamon; "eyebrow" and lores 

 cinnamon-buff, the suborbital and auricular regions similar but deeper 

 in color (more tawny) ; a post-malar or subauricular bar of pale buff, 

 this bordered posteriorly by a space of clear tawny (without black), 

 which extends entirely across throat; rest of under parts mostly 

 light cinnamon-brown (or sayal brown), irregularly barred with 

 dusky, but the general brown color broken by an irregular admixture 

 of dull white, which is most evident on center of breast and upper 

 abdomen; under tail-coverts dull buffy white with mesial sagittate 

 or cuneate streak of dusky or brown and dusky; under wing-coverts 

 pale buffy suffused with cmnamon-buff and tawny, especially toward 

 edge of wing, where streaked and spotted with dusky; inner webs of 

 remiges grayish brown, the inner webs of secondaries with distinct 

 transverse spots of dull white, the primaries \vith indistinct trans- 

 verse spots of paler grayish brown (except on distal portion of longer 

 and outermost quills) ; bill horn color (in dried skins), with yellowish 

 tomia. 



Adult male. — Length (skin), 132; wing, 106.5; tail, 51.5; culmen, 

 from cere, 8.5.^ 



Adult ferrmle.—Lejxgih (skins), 137-138 (137.5); ym\g, 102-104 

 (103); tail, 44.5-49 (46.7); cuhnen, from cere, 8.5-9 (8.7).^ 



Micrathene whitneyi (not Athene whitneyi Cooper) Grayson, Proc. Bost. Soc. N. H., 

 xiv, 1871, 300 (Socorro Island).— Lawrence, Mem. Bost. Soc. N. H., ii, 1874, 

 297 (Socon-o I.; habits).— Ridg way, in Baird, Brewer, and Ridgway, Hist. 

 N. Am. Birds, iii, 1874, 87, part (Socorro I.). 



[Micrathene] whitneyi Coues, Key N. Am. Birds, 1872, 207, part (Socorro I.).— 

 ScLATER and Salvin, Nom. Av. Neotr., 1873, 117, part (Socorro I.). 



Micrathene graysoni Ridgway, Auk, iii, July, 1886, 333 (Socorro Island, Revil- 

 lagigedo group, w. Mexico; coll. U. S. Nat. Mus.); Proc. U. S. Nat. Mus., 

 ix, 1886, 166 (full descr.; synonymy).— Anthony, Auk, xv, 1898, 317 

 (Socorro I.). 



a One specimen. ^ Two specimen. 



