African Greys are quite popular because of their intelligence.
English neighbours, the Greys of Ruthin.
Of the quartz-monzonite type are the whitish granites of Bethel and Rochester (Windsor county) and Randolph (Orange county), the light grey of Dummerston (Windham county), and the darker greys of Cabot (Washington county), Derby (Orleans county), Hardwick and Groton (Caledonia county) and Topsham (Orange county).
Though produced by crossing, it now generally breeds true to colour, at times throwing back, however, to the silver greys from which it was derived.
From the greater value of the fur, silver greys have been frequently employed to stock warrens, as they breed true to colour in the open if the ordinary wild rabbits are excluded.