OF GENERA. xi 



11. BUTEO (Buzzard). Lore without feathers ; tarsi short 

 and strong, naked or feathered ; wings large, the fourth primary 

 the longest. Page, 34. 



12. PERNIS (Honey Buzzard). Lore covered with small scale- 

 like feathers ; tarsi moderate, half-feathered ; wings large, third 

 and fourth quill-feathers the longest. Page, 37. 



13. CIRCUS (Marsh Harrier). Head surrounded by a circle of 

 feathers ; tarsi long and slender, feathered a little below the joint ; 

 wings long, third and fourth primaries the longest ; tail long, 

 somewhat rounded. Page, 39. 



Family III. STRIGID^;. 

 (OWLS.) 



Head large, feathered ; eyes large, dilated and projecting, each 

 surrounded by a concave disk formed of stiff diverging feathers, 

 concealing the cere and nostrils ; ears large, and of elaborate 

 construction ; plumage lax and downy, adapted for slow and quiet 

 flight. Food, small quadrupeds, birds, and insects. 



Sub -Family I. BubonincK. 



Beak strong, curved from the base ; head furnished with two 

 tufts of feathers (egrets), nostrils in the cere, rounded or oval ; 

 facial disk small and incomplete ; ears small, and without an 

 operculum. 



14. BUBO (Eagle Owl). Wings rather short, third and fourth 

 primaries generally the longest ; legs robust, feathered to the 

 claws. Page 43. 



15. SCOPS (Scops Eared Owl). Wings long, reaching to the end 

 of the tail, the third primary generally the longest ; legs rather 

 long, feathered to the junction of the. toes, which are naked. 



Page 45. 

 Sub-Family II. Syrniince. 



Beak bending from the base ; egrets more or less conspicuous or 

 wanting ; facial disk complete ; ears large, covered by an operculum ; 

 legs feathered to the claws. 



16. OTUS (Eared Owls). Nostrils oval, oblique ; egrets more 

 or less elongated ; wings long, second primary the longest. 



Page 47. 



17. SfRNiuM (Tawny Owl). Nostrils round ; egrets wanting ; 

 wings short and rounded ; fourth primary longest. Page 55. 



Sub -Family III. Strigince. 



Beak somewhat elongated, bending at the top only ; egrets 

 wanting ; nostrils oval, oblique ; facial disk large and complete ; 

 ears large, covered by an operculum; wings long, the second 

 primary longest ; tarsi long, feathered to the toes, which are 

 strangely furnished with hair-like feathers ; claws long, the middle 

 one serrated beneath. 



18. STRTX (White Owl). Characters given above. Page 51. 



