KEY TO FAMILIES OF LAND BIRDS 



109 



ORDER RAPTORES: VULTURES, EAGLES, 

 HAWKS, OWLS, ETC. 



Fig. 132. 



1. Head naked, feet not suited for 

 grasping. . . Cathartidae 

 Vultures 



1 . Head feathered, feet especi 

 adapted for graspiug- 





rtidae : \\ \ 



, p. 144. 11,3^5- 



pecially ^^<^^^^^pi, 



Fig. 131. 



2. Eyes not surrounded by striking- 

 discs of radiating- feathers. 

 Falconidae : Falcons, 

 Kites, Hawks, Eagles, 

 etc., p. 140. 



Fig. 133. 



Fi_ 



Eyes surrounded by striking discs 

 of radiating- feathers. 



3. Inner edge of middle claw 



toothed . . . Strigidae : 



Barn Owls. p. 173. 



3'. Inner edge of middle claw not 



toothed . . Bubonidae : 



Horned Owls, etc., 



36. p. 175. 



ORDER PSITTACI: PARROTS. 



Toes 4, 2 in front, 2 behind ; outer toe perma- 

 nently reversed Psittacidae : 



Parrots, j). I'.i'J. 



ORDER COCCYGES: CUCKOOS, 

 TROGONS, KINGFISHERS, 

 ETC. 



Fin. 137 



--^^^^^^^ 1. Toes 4, ;; pointing ft)r\vard, 1 hack Alcedinidae : 

 rx, ' Kingfishers, j). ll>8. 



FigTt3S. 



i r. Toes 4, 2 pointing forward, 2 back. 



Fig. 130. 



