Monkeys help clear out birds' nests in airport

A military airport has sought the help of monkeys to remove birds' nests that pose a threat to flight safety, according to the Chinese air force.

"Our airfield is located along one of the eight flyways, the East Asian-Australasian Flyway, so large numbers of migrating birds come here around March every year and begin nesting near the airport, which creates significant safety hazards for flight," Su Chuang, head of the bird control team at an unidentified airbase of Beijing Military Command, told People's Liberation Army Daily.

The nests must be removed, but shooting or knocking them down with bamboo sticks is inefficient, he said.