526 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



usually suffused with buff, especially toward edge; remaining sec- 

 ondaries dark sooty brown with about four transverse series (beyond 

 tips of greater coverts) of ochraceous-buff spots, more or less broken 

 by a few small irregular dusky markings, and narrowly tipped with 

 buffy whitish; primaries dull brownish black, spotted on outer webs 

 with ochraceous-buff (these spots on inner or proximal primaries 

 broken by small irregular spots of blackish), their terminal portion, 

 especially on inner webs, mostly grayish dusky broken by rather 

 sparse irregular vermiculations of light brownish buffy; middle pair 

 of rectrices mottled or coarsely vermiculated dusky and pale dull 

 ochraceous-buff, and with much heavier marblings of brownisli black 

 having a tendency toward forming very irregular transverse bands; 

 next pair similar but with relatively more blackish and with the 

 transverse tendency of the markings more pronounced; third pair 

 still darker, passing into uniform sooty blackish distally and narrowly 

 tipped with dull white; fourth and fifth pairs similar but with the 

 white tips successively much broader, that on the outermost rectrix 

 about 20 mm. wide along shaft, the anterior outline of these white 

 terminal areas strongly oblique, touching edge of outer web far 

 anterior to the point where it crosses the shaft; auricular region 

 deep brown (prouts brown) indistinctly barred with dusky; chin 

 tawny-buff or dull ochraceous-buff, sparsely barred with black; malar 

 region and throat brownish black, broken by a few bars and trans- 

 verse spots of ochraceous-buff, the feathers of lower portion tipped 

 with pale buff or buffy v/hite, these tips becoming much broader on 

 extreme lower throat where forming a conspicuous transverse 

 band or collar; chest sooty black, coarsely but rather sparsely ver- 

 miculated with buffy; rest of underparts similar but with large, 

 irregularly roundish, subcordate, or subtriangular spots of dull white, 

 especially on breast, abdomen, and flanks; under tail-coverts buff, 

 with rather narrow and distinct regular bars of dusky; under wing- 

 coverts sooty blackish, transversely spotted with dull tawny or 

 tawny-ochraceous, especially toward edge of wing; inner webs of 

 primaries nearly uniform dark grayish sooty brown, but this slightly 

 broken by a few small irregular spots or bars of duU tawny-ochraceous ; 

 biU brownish, blackish at tip; iris dark brown; legs and feet light 

 brownish, the toes darker; length (skins), 244-256 (250); wing, 

 166.5-178.5 (172.6); tail, 124-139 (130.5); exposed cuknen, 13.5- 

 15.5 (14.4); tarsus, 15-16 (15.7); middle toe, 15-16 (15.6).« 



Adult female. — Similar to the adult male but terminal areas of 

 lateral rectrices much narrower and dull buff or pale clay color 

 instead of white; length (skins), 237-248 (243); wing, 164-172.5 

 (169.3); tail, 116.5-128.5 (123.5); exposed culmen, 13.5-15 (14.2); 

 tarsus, 15-16.5 (15.9); middle toe, 14.5-16 (16.8).^ 



o Seven epecimens. * Six specimens. 



