COMMON SWIFT. 



INSESSOBES. 

 FISSIROSTRES. 



hirundinida:. 



THE COMMON SWIFT. 



Hirutido apvs, Swift Stoallow, Penn. Brit. Zool. vol. i. p. 550. 

 „ ,, The Swift, Mont. Ornith. Diet. 



Bewick, Brit. Birds, vol. i. p. 306. 

 Flem. Brit. An. p. 61. 

 Selbv, Brit. Ornith. vol. i. p. 127. 

 Jenyns, Brit. Vert. p. 159. 

 Gould, Birds of Europe, pt. ii. 



Cypselus ,, ,, 



,, murariits, Common 

 ,, apus, „ 



,, viiirarius, The 



,, ,, Martinet de Muraille, Temm. Rlan. d'Ornith.voI. i. p. 434. 



Cypselus. Generic Characters. — Beak very short, triangular at its base, 

 wide, concealed, depressed, gape extending beyond the eyes ; upper mandible 

 hooked at the point. Nostrils longitudinal, near the ridge of the beak, open, 

 the edges raised and furnished with small feathers. Tarsi very short ; toes 

 four, all directed forwards and entirely divided ; claws short, strong, and curved. 

 Wings very long ; the first quill-feather a little shorter than the second. 



