A macaque tears down a bird's nest. [Photo/jz.81.cn]

Clearing the sky

Major online shopping platforms have been told to stop selling unmanned aerial vehicles until Friday. Model aircraft owners have been banned from flying their planes for sports, entertainment and advertising campaigns within 300 kilometers of Tian'anmen Square from Aug 22 until Sept 4.

Beijing Capital International Airport and Nanyuan Airport will close from 9:30 am to 12:30 pm on Sept 3, with no arrivals or departures allowed

Flights of hot air balloons, gliders and parachutes are banned until Sept 4.

Macaques, saker falcons and harriers have been trained to disperse birds at an air force station in Beijing to ensure 10 air echelons for the parade fly without the risk of bird strikes.