3U NORTH AMERICAN BIRDS. 



sides, and flanks also rufous. Adult females with 

 all the tail-feathers rufous for basal half (but green 

 on middle pair running along median portion 

 nearly to base), the three outer feathers broadly 

 tipped with white and marked by a subterminal 

 broad band of blackish ; belly white, but sides, 

 flanks, and under tail-coverts light rufous. Young 

 males : Similar to adult female, but feathers of upper 

 parts bordered with pale rusty, the rump snow- 

 ing much rufous, and throat usually with one or 

 more feathers (new moult) of bright metallic red. 

 Young females : Similar to young males, but rump 

 entirely green, and throat showing only dull green- 

 ish specks. 



h\ Adult male: Tail-feathers broad, the second (from 

 middle) with a deep notch near end of inner 

 web, and outer web sinuated near tip ; outer 

 feather more than .10 broad ; upper parts 

 rufous, the crown (and, rarely, the back) 

 glossed with dull metallic green; length about 

 3.25-3.70, wing 1.50-1.60, tail 1.30-1.35, cul- 

 men .60. Adult female : Outer tail-feather 

 more than .10 wide ; length about 3.50-3.90, 

 wing 1.75-1.80, tail 1.25-1.30, culmen .65-.70. 

 Eggs .48 X .31. Hob. Western North Amer- 

 ica, north beyond northern border of United 

 States (to or beyond Sitka on Pacific coast), 

 east to Kocky MotmtainB, south over table- 

 lands of Mexico 433. T. rufus GMEL. 



Rufous Hummingbird. 



A 8 . Adult male: Tail-feathers narrow, the second 

 (from middle) without notch or sinuation ; 

 outer feather much less than .10 broad ; whole 

 back, as well as crown, bright metallic green; 

 length about 3.25-3.30, wing 1.50-1.55, tail 

 1.10-1.20, exposed culmen .60-.65. Adult fe- 

 male: Outer tail-feather not more than .10 

 wide ; length about 3.40, wing 1.65-1.70, tail 

 1.05-1.15, exposed culmen .68-.70. Eggs .48 

 X .32. Hob. Coast district of California, 

 north to British Columbia, south to Arizona. 

 434. T. alleni (HENSH.). 

 Allen's Hummingbird. 



g*. Adult male with top of head brilliant metallic red, 

 like gorget, the middle tail-feathers green bordered 



