How do you spell Partridge

Available Definitions:
1)  n. - Any one of numerous species of small gallinaceous birds of the genus Perdix and several related genera of the family Perdicidae, of the Old World. The partridge is noted as a game bird.
2)  n. - Any one of several species of quail-like birds belonging to Colinus, and allied genera.
3)  n. - The ruffed grouse (Bonasa umbellus).