A team of experts of the Zoological Survey of India (ZSI) is studying ways to tackle jackals and birds coming perilously close to the runway and aircraft parking areas. 

The Netaji Subhas Chandra Bose International Airport authority has approached ZSI seeking suggestions from them to control the problem, ZSI officials said, adding that they had been conducting the study for the past three months. 

"There is a substantial population of jackals near the airport. They dig burrows from outside the fencing area and come inside very discreetly. Once they enter they keep roaming around the area including the plane take off and landing bays. 

This can cause a big accident someday as the runways have to be kept free for flight operations," ZSI scientist Dr Gopinathan Maheswaran said. 

He said they were planning to do radio-collaring of some jackals to monitor their movements. 

"Once we know their exact routes then we can prepare a plan to plug their entry and exit points. We have submitted a proposal to the airport authorities saying that a detailed study needed to be carried out in the vicinity of the airport area. Once we do that we’ll submit our suggestions," he said.