!8 THE DARWINIAN THJiUKY 



cnown which breed true, and these differ constantly 

 "rom each other. The chief varieties are the follow- 

 ng. (See Fig. i.) 



The Pouter is a large and upright bird with a long 

 jody and long legs, a moderate-sized beak, and a 

 /ery large crop and oesophagus. It has the habit 

 )f inflating its crop, producing a " truly astonishing 

 ippearance," being then " puffed up with wind and 

 jride." 



The Carrier is a large bird with a very long beak. 

 The skin round the eyes, over the nostrils, and on the 

 ower jaw is much swollen, forming a prominent 

 vattle. 



The Barb has a short and broad beak, and a wattle 

 >f moderate size. 



The Fantail has tail feathers to the number of 34 

 )r even 42, twelve being the normal number. The 

 ail is expanded and held erect. It has a peculiar 

 rait, and a curious habit of trembling by convulsive 

 novements of the neck. In a good specimen the 

 :ail should be long enough to touch the head. 



The Turbit has a frill formed by divergent 

 eathers along the front of the neck and breast. The 

 aeak is very short. 



The Tumbler has a small body and short beak. 

 During flight it has the habit of turning involuntary 

 Dack somersaults. 



The. Jacobin has long wings and tail and a mo- 

 derately short beak. It has a hood formed by the 

 eathers of the neck. 



The Trumpeter has a tuft of feathers at the base 

 )f the beak, curling forwards. The feet are much 



