CHOUGH. 



581 



great doubt must attach to the example in question ; for P. alpinus is not a 

 migratory species, and, further, is a bird very likely to be imported into this 

 country. It is found in the mountain-ranges of Southern Europe and the 

 Himalayas, and may always be distinguished from the British species by 

 its short yellow beak. The egg of this bird has been figured (Plate 16) 

 for the sake of comparison with that of the British species. I found it 

 breeding in the Parnassus. 



