052 
Orver 4. COCCYGES. 
Family 1. 
The one representative of this family is 
Family 2. 
The only member of this family occurring is 
RAPTORES. 
Family 1. 
ORDER 5. 
The only member of this family is 
Family 2. 
I. Head with conspicuous ear tufts 
A. Length about 10 inches. 
1. Toes entirely naked 
2. Toes not entirely naked. 
a. Upperparts sooty brown. 
b. Upperparts buffy-gray. 
B. Length about 15 inches. 
t Ear tufts long. 
2. Ear tufts short. 
C. Length about 22 inches. 
Prevailing color dark 
Prevailing color tawny. 
I. brownish 
2 
3. Prevailing color gray 
4 
I 
sooty 
Prevailing color grayish white. 
{ead without tufts 
A. Nearly pure white. 
B. Color never nearly white 
Length about 27 inches. 
Length about 20 inches. 
Length about 15 inches, 
About 10 inches long. 
a. Tarsi bare behind 
b. Tarsi not bare behind. 
Under 9 inches long 
a. Head with streaks 
(1). Above cinnamon brown, 
(2). Above nearly chestnut brown 
b. Top of head spotted 
(1). Lighter 
(2). Darker 
+whr- 
uw 
Family 3. FALcontpak. 
I. Length over 30 inches 
A. Tarsi completely feathered 
B. Tarsi not completely feathered 
II. Length over 15 under 26 inches 
A. Length over 20 inches 
1. Top of head white 
2. Top of head not white 
a. Tarsi feathered to the toes 
(1). Upperparts, white, grayish, and dusky 
(2). Upperparts generally terruginous 
b. Tarsi not wholly feathered 
(1). Rump white 
(2). Rump not white 
(a). General color of tail reddish brown 
(b). General color of tail pure white 
(c). General color of tail light gray 
(d). General color of tail dark gray 
(at) Above bluish slate 
(b'). Above dark plumbecous 
(ce). General color of tail gray-brown 
ALCEDIN IDAE, 
CUCULIDAE. 
ALUCONIDAE. 
STRIGIDAE. 
Cuckoos, Kingfishers. 
Kingtishers. 
181. Belted Kingfisher. 
Cuckoos. 
180, California Cuckoo. 
Vultures, Hawks, Eagles, Owls, etc. 
Barn Owls. 
B.C. & Hoar. Barn Owl. 
Owls. 
191. Dwarf Screech Owl. 
189. Kennicott’s Screech Owl. 
190. MacFarlane's Screech Owl. 
182. Long-eared Owl. 
183. Short-eared Owl. 
194. Dusky Horned Owl. 
B. C. & H. 12. Great Horned Owl. 
192. Western Horned Owl. 
193. Arctic Horned Owl. 
195. Snowy Owl. 
185. Great Gray Owl. 
184. Northern Spotted Owl, 
196. American Hawk Owl. 
197. Burrowing Owl. 
186. Richardson's Owl. 
187. Saw-whet Owl. 
188. Northwest Saw-whet Owl. 
198. Pygmy Owl. 
199. California Pygmy Owl. 
Hawks, Eagles, etc. 
209. Golden Eagle. 
210. Bald Eagle. 
220. American Osprey. 
207. American Rough-legged Hawk. 
208. Ferruginous Rough-leg. 
200. Marsh Hawk. 
205. Western Red-tail. 
B.C. & H. 14. White Gyrfalcon. 
air. Gray Gyrfalcon. 
203. American Goshawk. 
204. Western Goshawk. 
206. Swainson’s Hawk. 
