野生动物工作者则发射声音很大的炮弹来把鸟从水边轰开。
Wildlife workers are also firing loud cannons to "haze" birds from the water's edge.
母鲸和幼鲸朝内陆萨克拉门托游了一周，野生动物官员通过播放其他鲸鱼的声音才诱使他们转向。
The mother and calf have been swimming inland toward Sacramento for about a week before wildlife officials were able to lure them in another direction by playing recordings of other whales.
母鲸和幼鲸朝内陆萨克拉门托游了一周，野生动物官员通过播放其他鲸鱼的声音才诱使他们转向。
The mother and calf have been swimming inland toward Sacramento for about a week before wildlife officials were able to lure them in another direction by playing recordings of other whales.
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