After falcons helped to solve similar bird problems at airport runways and military bases, Orange County officials decided to invest $40,000 to see if they could be an protect the airspace over the landfill.

• 这些猎鹰早已声名远播：它们曾成功地在机场跑道和军用基地解决过同样的问题。 因此，橘郡政府才决定投资4万美金引进它们，希望它们能从海鸥手中夺回垃圾堆的"领空"。