(1):

(n.) The ruffed grouse (Bonasa umbellus).

(2):

(n.) Any one of several species of quail-like birds belonging to Colinus, and allied genera.

(3):

(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.