768 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



TROGONURUS AMBIGUUS AMBIGUUS (Gould). 



COPPERY-TAILED TROGON. 



Adult male. — Forehead (sometimes part, occasionally whole, of 

 crown also) black; occiput (usually more or less of crown) , hindneck, 

 back, scapulars, and anterior portion of lesser wing-covert region 

 bright metallic green, bronze-green, or golden bronze, passing into 

 metallic pure green or bronze-green on rump and upper tail-coverts; 

 middle pair of rectrices bright bronze or copper-bronze, changing to 

 a greenish hue in some lights (the color sometimes more greenish 

 basally), broadly and abruptly tipped with black or bluish black, 

 the next pair of rectrices similarly colored on outer web, but inner 

 web darker and more purplish bronze passing into blackish basally, 

 the terminal black area broader and less sharply defined; remaining 

 rectrices very broadly tipped with white (this white terminal area 

 margined basally by a narrow, usually more or less interrupted, nar- 

 row bar of black), the subterminal portion and greater part of outer 

 web white, irregularly vermiculated or finel}^ flecked with blackish 

 (except sometimes on basal portion of outer web of outermost rec- 

 trix), the basal portion of inner web uniform blackish; wing-coverts 

 (except anterior portion of lesser covert area) delicately vermiculated 

 with black and white; primaries slate-black, the outer webs mostly 

 pale gray or grayish wliite; loral, suborbital, auricular, and malar 

 regions, chin, and throat uniform black or slate-black; chest bright 

 metallic bronze-green, bronze, or copper-bronze, succeeded by a 

 crescentic band of pure wliite, the remaining under parts pure 

 geranium red; thighs slate-black or blackish slate, the longer feather 

 broadly tipped with pink or pinkish white; bill yellow; naked eyelids 

 red or orange; iris dark brown; feet brownish; length (skins), 255-295 

 (278); wing, 127-136 (130.8); tail, 153.5-171 (165.6); culmen, 17-19 

 (18.2); tarsus, 1.4.5-16 (15); inner anterior toe, 14-16.5 (14.9).^ 



Adult female. — Forehead and at least anterior portion of crown 

 slate color or brownish slate, passing into plain brown (between 

 isabella color and raw umber) on occiput, liindneck, back, and 

 scapulars, the rump and upper tail-coverts similar but (especially the 

 latter) paler; wing-coverts similar in color to rump and upper tail- 

 coverts but (on very close inspection) minutely vermiculated with 

 darker, the outer webs of secondaries similar but paler; primaries 

 slate color or blackish slate, the outer web (except of outermost) 

 broadly edged with wliite or grayish wliite; middle pair of rectrices 

 Vandyke brown to chocolate brown (sometimes lightening into russet 

 or cinnamon-brown distally), broadly and abruptly tipped with 

 black; next pair blackish brown or brownish black, the outer web 

 more or less broadly edged (except terminally) with lighter brown; 

 remaining rectrices extensively white terminally and (except on tliird 



a Thirteen specimens. 



