Any of various small,quaillike Old World birds of the family Turnicidae that lack a hind toe and are related to the crane and the bustard.

• 三趾鹑，一种象鹌鹑的无后脚趾的三趾鹑科小体型东半球鸟类，与鹤和大鸨有一定的亲缘关系。