FALCONIBJE — FALCONINJE : FALCONS. 



535 



forward to invade the breast (this is the rale in European birds, the exception, though not a 

 rare one, in American birds). Tail and its upper coverts regularly and closely barred with 

 blackish and ashy-gray, the interspacing best rtiarked on the inner webs, and all the feathers 

 narrowly tipped with white or whitish. Primaries all showing uniform blackish on their ex- 

 posed surfaces, but on the inner webs seen to be marked with numerous regular and close-set 

 spots of white, whitish, or muddy buflf, for the most part isolated within the webs, but on the 



PlO 377. —Peregrine Falcon, or Duck Hawk, J nat size. (Prom Brehm.) 



inner primaries and secondaries, and toward the bases of all, becoming or tending to becouie bars 

 reaching the edge of the feather. Bill blue-black; cere and much of base of bill yellow; 

 feet yellow ; claws blackish. Size very variable ; length of a good-sized ? , 19.00 ; extent 

 45.00; wing 14.50; tail 7.00. $ averaging smaller; wing 13.50; tail 6.00; a usual range, 

 sex not considered, is, wing 11.50-14.00; tail 6.00-8.00; tarsus 1.75-2.10; middle toe 

 without claw rather more. Young : Recognizably similar to the adults in general characters ; 

 not barred below, but there more or less extensively and heavily streaked lengthwise ; uppc 



