Appendix, 



I. ' Back light bluish gray. Patches on 

 shoulders and under side of wing, black. 

 Head white. 



White-tailed Kite . . 14 



II. Back dark brown, with or without white 

 edgings. Head white, generally streaked 

 with dark brown. 



American Osprey . . 30 



III. Back reddish brown; shanks bright chestnut 

 barred with black. Head streaked black and 

 white. Belly barred with reddish brown. 



Adult Ferruginous Rough-leg 23 

 B. Under parts white or buff, conspicuously 

 streaked, barred or spotted. No solid brown 

 patch. 



I. Upper tail-coverts white or with bars of 

 white and brown. 



1 . Upper tail-coverts pure white. Forehead 

 and throat steaked brown and rusty. 



Marsh- Hawk . . 15 



2. Upper tail -coverts white and brown, 

 barred. Size large; feet powerful; throat 

 dark or light; tail grayish brown, barred. 



Young Western Red-tail . 19 



3. Upper tail-coverts heavily barred or 

 streaked with brown. Forehead and throat 

 white, with or without brown streaks. 



a. Feet feathered to the toes. 



a' . Breast white, lightly spotted or barred. 

 Young Ferruginous Rough-leg 23 

 b' Breast buffy, heavily streaked and 

 spotted brown. 



Young American Rough-leg 22 



270 



