These are the only birds of prey that hunt in packs. 栗翅鹰是唯一成群捕食的猛禽

70. At the first sign of danger
    当发现危险信号时
71. they bolt for the safety of the thorns.
    地松鼠们迅速躲进刺丛中避险
72. But the hawks have a tactic to flush them out.
    但栗翅鹰有法子逼它们出来
73. These are the only birds of prey that hunt in packs.
    栗翅鹰是唯一成群捕食的猛禽
74. Flying in formation,
    它们编队飞行
75. they try to drive their quarry into the open.
    将猎物驱赶到开阔地带
76. But this squirrel is staying put.
    但这只地松鼠按兵不动

来自《行星地球 第二季 第四集 Planet Earth S02E04 沙漠》第 73 行