46 



LIST OF DIUEHAL BIRDS OP PEET. 



^ Temminck refers to this species under the name of " Falco destructor" D'Orbigny 

 under that of '■'■Harpyia destructor" and Tschudi under that of " Morphius harpyia." 



^ In my Notes I have referred all the " Hawk -Eagles," both those with bare and those 

 with feathered tarsi, to the subfamily Thrasaetinse, but I now think it more convenient 

 to place all those genera in which the tarsus is wholly feathered in the subfamily 

 AquiliniE ; the gradation from Thrasaiitus to Aquila is a vei'y gradual one as regards all 

 other characters. 



' Plate 40 represents the immature plumage, and plate 41 the adult, but both are 

 incorrectly inscribed in this respect. Sir A. Smith refers this species to the genus Aquila. 



