A PRACTICAL HANDBOOK OF 

 BRITISH BIRDS. 



f 



KEY TO THE ORDERS. 



It must be understood that this " Key " is not a scientific 

 definition of the Orders, but that it applies only to British birds. 

 It is intended as an aid to the beginner in placing a bird unknown 

 to him. 



Hind toe connected by a web with the 

 inner toe : 

 Steganopodes (Cormorants and Gannets) 



Hind toe not connected by a web with 

 the inner toe 2 



Nostrils in one or two tubes, 

 no rictal bristles: 

 Tubinares (Petrels, Shear- 

 waters, Albatroses) 



Nostrils not tubular or else 

 (Goatsuckers) strong rictal 

 bristles present ... 3 



A. Fulmar Petrel (Fulmarus glacialis) . 



B. (from above). Manx Shearwater 



(Puflinus puffinus). 



