X SYSTEMATIC AREANGEMENT 



base, much hooked at tlic tip ; cere "bristly ; nostrils rounded or 

 oval ; wings loug. 



3. A'quila (Eagle). Upper mandible with the cutting edge 

 nearly straight ; tarsi feathered to the toes ; claws unequal, grooved 

 beneath ; wings \Wth the fourth primary longest. Page 4. 



4. Haliaetus. Beak very long ; edges of the upper mandible 

 slightly prominent near the hook ; tarsi half-feathered ; claws 

 unequal, grooved beneath ; wings with the fourth primary longest ; 

 nostrils transverse. Page 8. 



5. Pandion (Osprey). Beak short, cutting edges of the upper 

 mandible nearly straight ; tarsi naked ; outer toe reversible ; claws 

 equal, rounded beneath ; wings with the second primary longest. 



Page 10. 



Sub-Family II. FaJconinoe. 



Beak short, strong, curved from the base ; upper mandible 

 strongly toothed, lower notched ; nostrils round ; tarsi strong and 

 short ; wings long and jiointed, with the second primaiy longest, 

 the first and third equal in length and having the inner web 

 notched near the extremity. 



6. Falco (Falcons, Merlin, Hobby, and Kestril). Characters 

 given above. Page 13. 



Sub-Family III. Accijjitrince. 



Beak short, strong, curved from the l)ase ; edge of the upper 

 mandible \di\\ a prominent festoon beyond the middle ; nostrils 

 oval ; wings rounded, short, reaching only to the middle of the 

 tail ; middle toe much the longest. 



7. AsTUR (Goshawk). Tarsi moderate, rather robust ; fourth 

 primary the longest. Page 26. 



8. AcciriTER (Sparrowhawk). Tarsi long and slender ; fourth 

 and fifth primaries equal in length and the longest. Page 27. 



Sub-Family IV. Milvince. 



Boak of moderate length, slightly curved from the base, upper 

 mandible with a slight festoon ; nostrils oval, oblique ; wings long ; 

 tail long and forked. 



9. MiLVUS (Kite). Tarsi feathered a little below the knee ; 

 fourth primaiy the longest. Page 31. 



10. Nauclerus (Swallow-tailed Kite). Tarsi very short, feathered 

 half-way in front ; second primary longest, second and third with 

 the inner web notched towards the tip. Page 33. 



Sub-Family V. Butconince. 



Beak rather small and weak, bending from the base ; cutting 

 edge of the upper mandible nearly straight, or but slightly 

 festooned ; cere large ; nostrils oval ; wings long ; the first four 

 feathers deeply notched on their inner webs ; tail not forked , 



