THE HAWK TRIBE 



'945 



ary quills is greater than half the length of the tail. The peregrine, which attains 

 a length of fifteen inches in the male and seventeen in the female, is easily recog- 

 nized by the distinct narrow black transverse bars on the thighs, the blackish 

 color of the crown of the head, and the expansion of the cheek stripe into a 

 large black patch. In the adult the whole of the crown of the head, the nape, 

 and the space below the eyes are nearly black; the back, wing coverts, and 



PEREGRINE FALCON. 

 (One-third natural size.) 



tail some shade of bluish gray, with darker bars; the primary quills brownish 

 black, with the inner webs barred and spotted with reddish white; the throat is 

 nearly white, and the breast reddish white, with short, dark brown transverse bars; 

 the remainder of the under parts, as well as the lower surface of the tail, being 

 marked with more continuous bars of brown and gray. The beak is blue, tending 

 to black at the tip, and the cere, legs, and toes are yellow. Such is the general 



