A flock of birds perched on the runway of the NSCB Airport here delayed take off and landing of flights by 30 minutes this morning.
Airport sources said the air traffic control officials noticed the presence of birds on the runway at around 11.50 am when a Kolkata-Guwahati Jet Airways plane was preparing for a take-off.
At the same time a Nagpur-Kolkata GoAir flight was ready for landing.
The ATC then instructed the Jet Airways flight to halt its take-off while asking the GoAir flight to climb to a higher level till the birds were moved out by bird-chasers, the airport sources said.
