Hummingbirds. 



42 7, Blue-throated Hummingbird (Caligena clem* 

 encice). L. 5.2. A white stripe behind, and a smaller 

 one before eye. Ad. cf. Throat blue; belly grayish; 

 back green; tail blue-black, outer feathers broadly 

 white tipped. Ad. £. Similar but throat dusky gray. 



Range.- Southern Mexico north, in mountains to mountains of 

 southwestern New Mexico and southern Arizona; winters south of 

 United States. 



4 38. Reiffer Hummingbird (Arnaults t-acatl). L. 

 4.1. Ads. Above, throat and breast shining green; 

 belly grayish; tail square, rusty brown, narrowly mar- 

 gined with coppery. Yng. Similar but more rusty 

 above. 



Range.— Northern South America; north, rarely, to Lower Rio 

 Grande Valley, Texas. 



439. Buff-bellied Hummingbird {Ama^ilis cer-rim- 

 ventris chalconota) . Similar to No. 438, but belly rusty 

 grajy, tail forked and broadly margined with coppery 

 green. 



Range.— Central America, north, in spring, to Lower Rio Grande 

 VaJiey, Texas. 



440.1. White-eared Hummingbird (Basilinna leu- 

 cotis). L. 3.7. A white line behind eye. Ad. rj\ 

 Chin, forehead and cheeks blue, throat and breast 

 green, tail blackish bronzy green. Ad. Q. Crown 

 rusty, back bronzy green, below gray spotted with 

 green; outer tail-feathers tipped with gray. Yng. fj\ 

 Similar. 



Range.— Nicaraugua north, in spring, through mountains to south- 

 ern Arizona. 



441. Broad-billed Hummingbird {Iache lattrostris). 



L. 4. Ad. cf. Above green; below darker; throat 

 purplish blue; tail darker. Ad. ?. Below gray; outer 

 tail-feathers green at base, then bluish black tipped 

 with gray. Yng. rj 1 . Similar to Ad. ?, but tail blue 

 black with faint gray tips; throat with metallic green 

 feathers. 



Range. — Southern Mexico: breeds north through mountains to 

 southern Arizona and southwestern New Mexico. 



428. Ruby-throated Hummingbird {Trochilus col- 

 ubns). L. 3.5; W. 1.5. Ad. (J\ Throat ruby, chin 

 blackish; tail forked, the feathers pointed. Ad. ?. 

 Throat grayish, tail-feathers rounded, three outer ones 

 tipped with white. Yng. cT- Like $ but throat with 

 dusky spots. (See next page.) 



Range.- Eastern North America, west to about Long, too : breeds 

 from Florida and eastern Mexico, north to Labrador and Hudson Bay 

 region; winters from southern Florida to Central America. 



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