41 



mentioned above is from five to seven days old, and weighed 

 ten ounces (the weights used in this paper are avoirdupois.) 

 The whole skin of this chick is of an ochreous yellow, and 

 covered with a dull white fine down; the beak was coloured 

 the same as in the old birds ; the skin of the head and neck 

 entirely bare of down, and of ochreous yellow; the colour of 

 the legs of a deeper shade than that of the body ; it had the 

 musky smell of the old birds, the size and appearance similar 

 to that of a two months' old gosling ; it had only been dead a 

 couple of hours." 



The cere and bare skin on the head and neck of the adult 

 males in this species are of an orange red of various shades, 

 verging to a flesh colour on the neck ; in other specimens these 

 parts are of a blackish lead colour, but whether this darker 

 colouring is the mark of immature age, or of the female sex, has 

 not yet been clearly ascertained. Mr. Taylor, however, is 

 of opinion that it is due to diff'erence of sex, and distinguishes 

 the female bird. The irides are of a carmine pink colour ; but, 

 apparently, vary somewhat in their tint in different individuals. 

 The colour of the legs and feet is of a yellowish grey. 



An excellent representation of this Vulture, in its red- 

 headed state, is given in Audubon's "Bu'ds of America," 

 pi. 426. I am not aware that any figure has been published 

 representing an individual with the blackish head above 

 referred to. Figures of the above-mentioned nestling and egg 

 (the former of which is in the Norwich Museum, and the latter 

 in my own collection) are given in the Ibis, 1860, pi. 8 and 9. 



SPECIMENS OP GATEAJRTES CALIFOBNIANUS. 



Skeleton Monterey, Califorma (G) Mr. Taylor. 



Skull Ditto (G) Ditto 



No. 1. S adult Ditto (G) Ditto 



No. 2. $ adult Ditto (G) Ditto 



No. 3. ? Ditto (G) Ditto 



No. 4, nestling Santa Lucia Mountains, California (G) Ditto 



