THE BIRD BOOK 
356b. Peale’s Falcon. Falco peregrinus pealei. 
Range. — Pacific coast from northern United 
States north to Alaska. 
A darker form of the preceding, such as oc- 
curs in this section with a great many other 
birds. The nesting habits and the eggs are 
precisely like those of the Duck Hawk. 
357. Pigeon Hawk. Falco columbarius 
columbarius. 
Brownish buff 
Range. — North America, breeding chiefly north 
Pigeon Hawk of the United States except in some of the higher 
ranges along our northern border. A small Fal- 
con, about 11 inches long, often confused with the Sharp-shinned Hawk, but 
much darker and a more stoutly built bird. It is a daring species, often attack- 
ing birds larger than itself; it also feeds on mice, grasshoppers, squirrels, etc. 
They generally build a nest of sticks in trees, deep in the woods; less often in 
natural cavities of dead trees; and sometimes on rocky ledges. Their four or 
five eggs have a brownish buff ground color, heavily blotched with brown and 
chestnut. Size 1.50 x 1.22 
357a. Black Pigeon Hawk. Falco columbarius suckleyi. 
Range. — Pacific coast from northern United States north to Alaska. 
Very similar in appearance to the preceding, 
but much darker, both above and below. Its I 
nesting habits and eggs will not differ in any 
manner from those of the Pigeon Hawk. 
357b. Richardson’s Pigeon Hawk. 
Falco columbarius richardsoni. 
Range. — Interior of North America from the 
Mississippi to the Rockies and from Mexico to 
the Saskatchewan. 
This species is similar to the Pigeon Hawk, 
but is paler both above and below, and the tail 
bars are more numerous and white. Their 
nesting habits are the same as those of the 
preceding species, they either building in hol- 
low trees, or making a rude nest of sticks and 
twigs in the tops of trees. The eggs have a 
creamy ground and are sprinkled with dots 
and blotches of various shades of brown. Size 
1.60 x 1.23. The egg figured is one of a beau- 
tiful set of four in the collection of Mr. C. W. 
Crandall. Richardson’s Pigeon Hawk 
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