HARRIS HAWK. 
335. Parabvteo unicinctus harrisi. 20 inches. 
This is a peculiar dark colored species; black imderparts; 
lighter on the back; shoulders, thigh and under-wing coverts 
reddish brown; tail coverts, base and end of tail white. Bare 
space in front of eye, except for stiff hair like bristles, yellow, 
as is also the cere. 
Nest. —Are made of twigs and weeds and placed usually 
in low trees. The three or four eggs are a dull white in 
color, faintly specked with a few spots of brownish (2.10 x 
1.65). 
Range.—Southern California, Arizona, Texas and New Mexico. 
WESTERN RED-TAIL. 
337b. Buteo borealis calurus. 21 inches. 
This bird varies greatly in its coloration; from the same 
as the eastern form to a sooty color above and below, with the 
dark red tail crossed by several bands, where the eastern 
bird has only one broad band. 
Nest. —Placed for choice in evergreen trees at heights from 
the ground varying from 30 to 50 feet. Two to four eggs, 
white, usually spotted and blotched with different shades of 
brown (2.35 x 1.80). 
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