45 



of a blueish grey colour. The Aura Vulture, from the colour 

 of its head and of its plumage, has, when on the ground, some 

 resemblance to the common turkey, and is on this accoimt 

 usually called in the United States " the Turkey Buzzard." 

 Specimens of this Vulture differ very considerably in size ; 

 biit the cause of these variations has not as yet been 

 satisfactorily ascertained. The smallest specimen of the 

 Aura Vultiu'e which I have seen is one from Florida, 

 No. 3 in the Norwich Museum. 



Audubon figures an adult and an immature specimen (the 

 former a male) from North American examples in the " Birds 

 of America," pi. 151. A figiu-e of the Aura of Western South 

 America is given by Mr. Cassin, under the name of " Carthartes 

 iota''' f3IolinaJ_, in the Ornithology of Wilke's "Exploring 

 "Expedition, pi. 1. 



The egg of the Aura Vulture is figured in Dr. Brewer's 

 "North American Oology," pi. 1 and 2. 



SPECIMENS OF CATHAETES AUBA. 



Skeleton Monterey, California... (G) Mr. Taylor. 



adult Ditto i (G) Ditto 



adult Ditto (G) Ditto 



adult Florida Presented by Mrs. J. J. 



Gumey. 



adult Northern Mexico (G) Mr. Wai-wick. 



5. adult Mexico (G) Mr. Pai-zudaki. 



adult Cuba (G) Geneva Museum, collected 



by Mr. de Saussure 



No. 7. adult Jamaica Presented by tbe Rev. J. 



M. Phillippo. 

 No. 8. adult Britisli Guiana Presented by His Excel- 



lency P. E. Wodehouse. 



No. 9. adult Ecuador (G) Mr. Eraser. 



No. 10. adult Bogota (G) Mr. Jamrach. 



No. 11. adult ChUi (G) Mr. Verreaux. 



No. 12. adult Ditto (G) Mi-. Parzudaki. 



No. 13. immature. Probably Chili (G) Mr. Verreaux 



No. 14. adult Falkland Islands (G) Mr. Jamrach, collected by 



Captain Abbott. 



