BIRDS OF NORTH AND MIDDLE AMERICA. 573 
HELIODOXA JACULA HENRYI (Lawrence). 
HENRY’S HUMMING BIRD. 
Similar to H. 7. jacula,* of Colombia, but slightly larger; adult male 
with general color of upper parts much less bronzy green, middle pair 
of rectrices blue-black or very (rarely) slightly bronzy, instead of 
decided bronze or bronze-green, and green of under parts of body 
much brighter and less bronzy. 
Adult male.—Pileum very brilliant metallic emerald green, the area 
thus colored becoming narrower posteriorly; sides of crown and occi- 
put, hindneck, back, scapulars, wing-coverts, and rump deep metallic 
green (nearly grass green) sometimes tinged with bronze, especially 
on hindneck or upper tail-coverts; tail slightly glossy blue-black, the 
middle rectrices sometimes (rarely) slightly bronzy; remiges slate- 
blackish, faintly glossed with violaceous; sides of head and neck, 
chin, throat, and chest brilliant metallic emerald green, the breast, 
abdomen, sides, and flanks similar in color but less brilliant; a trans- 
verse spot of bright metallic blue or (usually) violet-blue on center 
of throat; under tail-coverts rather dark or dull metallic green, the 
longer ones (at least) narrowly margined with pale grayish or dull 
whitish; femoral tufts white; bill black; iris dark brown; feet dusky; 
length (skins), 125-139 (130); wing, 73.5-79 (75.8); tail, 53-59 (54.9) ; 
middle rectrices, 28.5-32.5 (30.4); culmen, 20.5-23 (21.7).° 
Adult female—Above metallic green, sometimes tinged with bronze, 
especially on hindneck; tail slightly glossy blue-black, the middle 
rectrices usually more or less bronzy or bronze-greenish, the two or 
three outer pairs narrowly tipped or terminally margined with white; 
remiges slate-blackish, faintly glossed with violaceous; a postocular 
spot of white and a rictal spot or short streak of the same; a black or 
dusky triangular spot immediately in front of eye; chin, throat, and 
chest white, with large rounded spots of bright metallic green; the 
median line of breast and abdomen similar, but abdomen more 
sparsely spotted, sometimes immaculate; sides and flanks nearly 
uniform metallic green; femoral tufts white; under tail-coverts dusky 
grayish glossed (more or less) with green, and margined (more or 
less broadly) with white; bill, etc., as in adult male; length (skins), 
@ See p. 571. b Eleven specimens. 
