MACROCHIRES. 
Family 1. 
ORDER 2. 
‘TROCHILIDAE. 
J. Middle tail feathers broader near end than at base. 
II. Middle tail feathers narrower near end than at base. 
A. Outer tail feathers not decidedly shorter than middle pair. 
B. Outer tail feathers decidedly shorter than middle pair. 
1. Back reddish brown. 
2. Back green. 
Family 2. CAPRIMULGIDAE. 
I. Wing without a white patch. 
Il. Wing with a white patch. 
A. Coloration darker. 
B. Coloration lighter. 
951 
Goatsuckers, Swifts, Hummingbirds. 
Hummingbirds. 
155. Calliope Hummingbird. 
152. Black-chinned Hummingbird. 
153. Rufous Hummingbird. 
154. Allen’s Hummingbird. 
Goatsuckers. 
156. Poor=will. 
157. Pacitic Nighthawk. 
158. Western Nighthawk. 
Family 3. Micropopipak. Swifts. 
I. Tail feathers ending in spines. 160. Vaux’s Swift. 
II. Tail feathers without spines. 
A. Underparts without white. 159. Black Swift. 
B. Underparts with white. 161. White-throated Swift. 
Orper 3. PICI. Woodpeckers. 
Family. Prciwar. 
I. With only 3 toes. 
A. Back black without white. 
B. Back black with white. 
t. Back distinctly barred. Smaller. 
2. Back indistinctly or not barred. 
II. With 4 toes. 
A. Length about 17 inches. Head crested. 
B. Length over ro under 14 inches. 
1. Belly red, back black. 
2. Belly not red, back not black. 
a. Lining of wings and tail yellow. 
b. Lining of wings and tail red. 
(1). General coloration lighter. 
(2). General coloration darker. 
C. Length under to inches, over 8 inches. 
Whole head white. 
2. Whole head red or reddish. 
a. Colors duller. 
b. Colors brighter and deeper. 
Red of head restricted to crown, throat and nape. 
Crown black or brownish. 
a. Underparts with bright yellow. 
b. Underparts without yellow. 
H 
hw 
(1). Middle of back barred and spotted with black. 
(2). Middle of back white, unmarked. 
(a). Underparts white. 
(b). Underparts dirty white. 
(c). Underparts dirty brownish. 
D. Length under 7 inches. 
1. Underparts smoky gray. 
Ze 
Umderparts almost white. 
3. Underparts pure white, larget. 
Woodpeckers. 
169. Arctic Three-toed Woodpecker. 
170. Alaskan Three=toed Wood- 
pecker. 
B. C. 9. Alpine Three=toed Wood- 
pecker. 
175- Northern Pileated Woodpecker. 
176. Lewis’s Woodpecker. 
177. Yellow-shafted Flicker. 
Red-shafted Flicker. 
Northwest Flicker. 
178. 
179. 
168. White-headed Woodpecker. 
72. 
173- 
Meg Ks 
Red-breasted Sapsucker. 
Northwest Sapsucker. 
Red=-naped Sapsucker. 
174. Williamson’s Sapsucker. 
B. C. 8 Queen 
pecker. 
162. Rocky Mountain Hairy Wood- 
pecker. 
163. Cabanis’s Woodpecker. 
164. Harris’s Woodpecker. 
Charlotte Wood- 
167. Gairdner’s Woodpecker. 
165. Downy Woodpecker. 
166. Batchelder’s Woodpecker. 
