It is the area surrounding an animal, that if you enter, will cause the animal to exhibit threatened behaviour.
The sizes of the flight zones of individual animals will vary depending on how "tame" the animals are.
Visit www.grandin.com for more information on humane animal handling techniques.
Click here to read the Alberta Agriculture article on animal flight zones.
Watch the video on Flight Zone and Point of Balance.
There will be times you must invade an animal's flight zone.
To the management techniques already mentioned, add this one: Don't work alone.
A professional bull rider would never consider entering an arena without a rodeo clown. You are no less professional. Your risks are as great.
Incidents involving animals generally happen so quickly, there isn't time to wait for help.