The Probert Encyclopaedia of Nature

PARTRIDGE

The partridge is any of various medium-sized ground-dwelling fowl of the family Phasianidae, which also includes pheasants, quail, and chickens.
Partridges are Old World birds, some of which have become naturalised in North America, especially the European grey partridge (Perdix perdix), with mottled brown back, grey speckled breast, and patches of chestnut on the sides.
Research Partridge