Chap. XIV. 
GRADATIOX^ OF CHAIIACTEKS. 
137 
coverts of all ordinary birds ; and again between the 
magnificent ocelli of the former, and the simpler ocelli 
or mere coloured spots of other birds ; and so with 
all the other characters of the peacock. Let us look 
to the allied Gallinaceae for any still-existing grada- 
tions. The species and sub-species of Polyplectron 
"Fig. 53. Feather of Peacock, about two-thirds of natural size, carefully drawn by Mr. 
Ford. The transparent zone is represented by the outermost white zone, confined to 
the upper end of the disc. 
inhabit countries adjacent to the native land of the 
peacock ; and they so far resemble this bird that they 
u,re sometimes called peacock-pheasants. I am also 
informed by Mr. Bartlett that they resemble the pea- 
cock in their voice and in some of their habits. During 
