€lO ON SOME SPECIES OI' tUt 



adult bird. This is obvious in the large broWft 

 patch or spot on the cheek, which in the mature 

 Peregrine becomes black, and forms a distinguish- 

 ing character. It may be considered as that bird 

 after having passed at least one moulting. 



bosS'" '^^^ 52^^/^ variety, is the Haggard Falcon ; 

 Faico gibbosus, Briss. ; Le Faucon Hagard ou 

 Bossii, Buff. 



This bird differs from the preceding, in being 

 darker and more advanced in its plumage. It has 

 been erroneously described as an aged bird, but 

 the markings of its plumage prove the contrary. 

 It assumes the hunch-backed appearance, not from 

 age, but on account of its being about to cast its 

 feathers. This I have observed in other hawks 

 during the moulting season. As has been already 

 observed, the term Haggard was not originally 

 applied solely to this or any other variety or spe- 

 cies, but to such hawks as were reclaimed from a 

 state of nature after leaving the eyrie. 



rubeus. The seventh variety, is the Red Falcon ; Falco 

 rubeus^ Briss. 



It is similar to the Common Falcon in its plu- 

 mage, with this difference, that the feathers of 

 the wings, instead of being marked with white, 

 are^ spotted with red and black. 



Common 

 Falcon, 



