CLASSIFIED INDEX. 



The arrangement followed in this Index is that of the editors of the 

 last (fourth) edition of YarrelVs " British Birds." The first of the scien- 

 tific names of species is that used by them, in conformity with the code of 

 rules adopted by the Nomenclature Committee of the British Association. 

 Then follow other synonyms, when such have been mentioned in the text. 



ACCIPITRES. 



Birds of prey. Bill strong, curved, sharp-edged, often armed with 

 a lateral tooth, cere at base, nostrils open; body very muscular; legs 

 robust, short, with three toes in front and one behind, all armed with 

 long curved claws ; wings commonly pointed and of considerable size, 

 flight usually rapid and powerful ; primaries ten, wing-coverts large ; 

 tail with twelve or fourteen feathers. 



FALCONID^E (FALCONS}. 



Head plumose ; nostrils lateral, more or less rounded, open, and 

 situated in cere ; external toes especially connected with the middle 

 toe. 



Accipiter nisus, SPARROWHAWK, II. 9 



Aquila chrysae'tus, GOLDEN EAGLE, III. 129 



Buteo vulgaris (Faico buteo), BUZZARD, IV. 9 



Fnlco cesalon, MERLIN, III. 5 



Falco candicans (F. gyrfalco), GTR FALCON, II. 121 



Falco peregrinus (F. communis), PEREGRINE FALCON, II. 93 



Falco tinnunculus, KESTREL, I. 53 



Haliceetus albicilla (Aquila albicilla), WHITE-TAILED EAGLE, III. 113 



Milvus ictinus (M. vulgaris, Falco milvus), KITE, III. 73 



SI 'RIGID >JE (OWLS). 



Head large, with large projecting eyes, directed forwards and sur- 

 rounded with a circle or disc (more or less developed according to the 

 more or less nocturnal habits of the genus); beak hooked, short, 

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