TROCHILINiE. SELASPHORUS. 
171 
greyish-white mixed with green. Female differs in wanting the bril- 
liant patch on the throaty which is white^ as are the lower parts gene- 
ralljj and in having the three lateral tail-feathers tipped with the 
same colour. Young with the lower parts brownish- white, the tail 
tipped with white, the upper parts light green. 
Male, 3|, 4^. 
In summer, from Texas to Lat. 57°, and in all intermediate districts, 
east of the Rocky Mountains. Common. Migratory. 
Humming Bird, Trochilus Colubris, WiLS. Amer. Orn. v. ii. p. 26. 
Trochilus Colubris, Bo nap. Syn. p. 98. 
Trochilus Colubris, Northern Humming Bird, Swains. & Rich. F. Bor. Amer. 
V. ii. p. 323. 
Ruby-throated Humming Bird, Nutt. Man. v. i. p. 588. 
Ruby-throated Humming Bird, Trochilus colubris, Aod. Orn. Biog. v. i. p. 248 5 
V. V. p. 544. 
GENUS II. SELASPHORUS, Swains. RUFFED- 
HUMMINGBIRD. 
Bill long, straight, subulate, extremely slender, somewhat 
depressed at the base, acute ; upper mandible with the dor- 
sal line straight, the ridge narrow at the base, broad and 
convex toward the end, the sides convex, the edges overlap- 
ping, the tip acuminate ; lower mandible with the angle 
very long and extremely narrow, the dorsal line straightish, 
the edges erect, the tip acuminate. Nostrils basal, linear. 
Head of ordinary size, oblong ; neck short ; body short and 
ovate. -Feet very small ; tarsus very short, feathered more 
than half-way ; toes small, the lateral equal, the third not 
much longer, the first a little shorter than the lateral ; claws 
rather long, arched, compressed, very acute. Plumage soft 
and blended ; elongated feathers on the sides of the neck in 
the males. Wings rather short, falcate, pointed, the second 
primary longest. Tail rather long, broad, graduated. 
254. 1. Selasphorus rufus, Gmel. Rufous Ruffed-Humming- 
bird. — Nootka Hummingbird. 
Plate CCCLXXIX. Male and Female. 
Male with the upper parts bright cinnamon or reddish-orange, the 
head bronzed green, the wings dusky purple, their coverts glossed 
with green ; each of the tail-feathers with a narrow, longitudinal, lanceo- 
late, median streak toward the end ; loral space, a narrow band over 
