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. Sab. Western 

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

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

 436. T. calliope Gould. Calliope Hummingbird. 

 a 1 . 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 tipped with white and rufous at base.) (Subgenus 

 Calothorax Gray.) 

 b 1 . 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. Sab. Table-lands of Mexico, north to 

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

 &*■ 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. Sab. Southwestern Mexico (Oaxaca). 



T. pulchra (Gould). Beautiful Hummingbird. 1 



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



Species. 



Common Chaeactees. — 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 1 . Lower parts partly green. 



b 1 . Secondaries entirely dusky. 



c 1 . 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 bronzy; 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. Sab. Whole of Central 



1 Calothorax pulchra Sottld, Ann. <Sc Mag. N. H. ser. 3, iv. 1859, 97. 



