316 NORTH AMERICAN BIRDS. 



whitish, sometimes spotted centrally with dull metallic purple ; 

 otherwise much like adult male; length about 3.50, wing 1.75-1.80, 

 tail 1.10-1.15, culmen .58-.60. Eggs .47 X -31. Hah. Western 

 United States, north to British Columbia, Idaho, and northern 

 Montana, east to Eocky Mountains, south to table-lands of Mexico. 

 436. T. calliope Gould. Calliope Hummingbird. 

 a}. Exposed culmen more than half as long as wing, the bill decidedly curved. 

 {Adult males with tail deeply forked, uniform purplish black, except four 

 middle feathers, which are green, like upper parts; gorget (the feathers of 

 which are much elongated laterally and posteriorly) brilliant metallic ame- 

 thyst-purple, changing to violet-blue ; median lower parts white, sides and 

 flanks mixed bronzy green and pale rufous. Adult females green above, 

 light cinnamon-buffy beneath (but belly and under tail-coverts white), tail 

 much less deeply forked than in male, with broader feathers, the three outer- 

 most of which are broadly tij)ped with white and rufous at base.) (Subgenus 

 Calothorax Gray.) 

 b^. Adult male with outer tail-feather much narrower than the next and taper- 

 ing to a narrow point; length about 3.40-3.60, wing 1.40-1.60, tail 1.25- 

 1.35, exposed culmen .85-.90. Adult female : Wing 1.65-1.80, tail 1.20- 

 1.25, exposed culmen .75-.90. Hab. Table-lands of Mexico, north to 

 southern Arizona.... 437. T. lucifer (Swains.). Lucifer Hummingbird. 

 h"^- Adult male with outer tail-feather not narrower than the next, and not 

 tapering to a narrow point ; length about 3.10-3.25, wing 1.50, tail 1.50, 

 exposed culmen .75. Adult female : Wing 1.65, tail 1.15, exposed culmen 

 .75. Hah. Southwestern Mexico (Oaxaca). 



T. pulchra (Gould). Beautiful Hummingbird.* 



Genus AMAZILIA Lesson. (Page 308, pi. XC, fig. 2.) 



Species. 



Common Characters. — Above green, bronze-green, or bronzy, the tail rufous, 

 chestnut, bronzy, purple, or blue-black ; lower parts green anteriorly, or entirely 

 light cinnamon ; sexes alike. 



a\ Lower parts partly green. 



6\ Secondaries entirely dusky. 



&. Belly and flanks dull brownish gray, the latter glossed with green; 

 outer tail-feather with outer web chiefly or entirely dark bronzy ; 

 upper tail-coverts uniform chestnut ; tail deep chestnut, feathers 

 bordered terminally with bronz}- ; lower tail-coverts deep cinna- 

 mon-rufous. Young similar to adult, but rump tinged with rufous, 

 and forehead washed with rusty ; length about 4.00, wing 2.00-2.35, 

 tail 1.45-1.70, exposed culmen .70-.90. Hah. Whole of Central 



* Calothorax pulchra GouLD, Ann. & Mag. N. H. ser. 3, iv. 1859, 97. 



