684 SYSTEMATIC SYNOPSIS. - RAPTORES - ACCIPITRES. 



tree, a bulky mass of sticks and siiialler twigs, mixed toward the centre with grass, bark, 

 leaves, moss, or other soft material, and often some feathers. Eggs 2, 3, or 4, about 2.40 X 

 1.90, with a difference in length of fully 0.40, dull whitish, sometimes with only a few pale 



Fig. 468. — Red-tailed Hawk. 



markings, rarely none, oftenest blotched (sometimes richly) with shades of brown ; they are 

 laid March-June, but mostly April and May. The young are slow to acquire their perfect 



