224 ROUGH-LEGGED FALCON. 



slightly tipped with pale brown ; but the bases of the quills remain 

 white, the broad patch on the under surface of the wing being conspi- 

 cuous. Some of the feathers on the forehead are margined with wliite, 

 and those on the nape are white excepting at their extremity. Pro- 

 bably this individual is older than the male above described. 



Length to end of tail 23 inches, bill along the ridge j^g ; wing from 

 flexure 18^; tail 9i|; tarsus 3; hind toe ^9|, its claw lj% ; middle 

 toe li%, its claw i%. 



A middle-aged male has been described at p. 380 of vol. ii. 



A middle-aged female agrees entirely with the description there 

 given ; but has a broad band of blackish-brown across the middle and 

 hind part of the breast. 



Length to end of tail 25^ inches ; to end of wings 24^ ; extent of 

 wings 56 ; bill along the ridge 1^ ; wing from flexure 18^ ; tail 10^ ; 

 tarsus 3^^ ; middle toe 1/^, its claw A- 



Young Male in winter. Plate CCCCXXIL Fig. 2. 



The proportions are the same as those of the adult male. The cere 

 and toes are yellow ; the bill and claws black, tinged with blue at the 

 base. The feathers of the fore part of the forehead are white with 

 dark streaks ; those of the upper part of the head brownish-black, broadly 

 edged with pale reddish, the hind part of the neck of the latter colour, 

 streaked with dark, and having a patch of white on the nape. The upper 

 parts are blackish-brown, the feathers edged with light grey or light red, 

 and more or less variegated with these colours, and in their concealed 

 portions barred with white, as in the adult. The tail is beautifully 

 and distinctly barred with black and white, towards the end tinged 

 with rufous, the subterminal black bar large. The lower parts are yel- 

 lowish-white, streaked and barred with blackish-brown. Large patches 

 of the latter occupy the sides of the fore neck and breast, as well as 

 some of the lower wing-coverts, and the feathers of the legs are barred 

 with dusky and light red. The white patch on the lower surface of 

 the wing as in the adult. 



Length to end of tail 20 inches, bill along the ridge 1^| ; wing 

 from flexure 17^ ; tail 9. 



2 



Male from Boston, preserved in spirits. As in other birds of this 

 family, the roof of the mouth is flat, with an anterior ridge dividing 



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