ESSENTIAL CHAHACTERS OF THE ORDERS. 



The Orders of which the British species are described in this 

 volume, may be distino^uished by the following brief characters, 

 of which the most important, or those derhed from the diges- 

 tive organs^ are represented by the accompanying sketches. 



Fig. ^. 



Fig. 37. 



Fig. 33. 



Rasores. Gemitores. 



Deglubitorks, Vagatores. 



By simply inspecting the intestinal canal of a bird belonging 

 to any of these species, one can invariably refer it to its proper 

 order. It is to be observed, however, that the various charac- 

 ters are elsewhere given in detail. 



h2 



