ACTIVITIES OF BIRD FLOCKS TAKE PLACE AROUND AD. 
FLIGHT CREW SHALL PAY ATTENTION TO RWY21 THR.
HEIGHT:30M-300M.
MOVE FASTIGIUM TIME:22:30-00:00(NEXT DAY)DLY,10:00-12:00 DLY.
QUANTITY:ABOUT 5-300.
AERODROME AUTHORITY RESORTS TO DISPERSAL METHODS TO REDUCE BIRD 
ACTIVITIES.EXERCISE CAUTION WHILE LANDING AND TAKE-OFF.