AVES CATHARTID^. 



533 



of the adult is indicated by a paler shade of brown. Primaries and tail 



feathers dull brownish. In this plumage the neck is covered with a thick 



dark brown down and the head is not so bare as in the old birds ; the ruff 



on the neck is deep lead color and is not so well defined as is the white 



ruff of later life. 



Fig. 268. 



Vidtur gryphus. Immature female. P. U. O. C. 7984. About one-eighth natural size. 



Geographical Range. — Andes and cliffs of the coasts of western South 

 America north to Peru ; the cliffs of the Straits of Magellan and the Atlantic 

 Coast north to the mouth of the Rio Negro (Darwin). Not frequent in 

 the interior of Patagonia away from broken, hilly or mountain country. 

 (Hatcher.) 



The fine series of these birds brought by Mr. Hatcher from Patagonia, 

 together with live birds in the Zoological Gardens in London and New 

 York have formed the basis of the foregoing descriptions. Appended are 

 the accounts of some of the best observers as to the behavior and general 

 life history of the Condor. 



