Any of various game birds in the family Tetraonidae (order Galliformes), including the prairie chicken and ptarmigan, or the sandgrouse (order Columbiformes).

形目科的鸟。包括草原、雷鸟和沙（鸠鸽目）。

Most of the birds that have ent the brief summer on the tundra now disa ear, leaving only the golden eagle, the gyrfalcon, the ptarmigan, and the owy owl to brave the sunle northern winter.

在苔原度过暂夏天的大部分鸟类现已消失，只剩下金鹰、白、和雪白色的猫头鹰来迎接这没有太阳的北极之冬。