You do not have your location in your profile,,,,,, so it is hard to give advice as to how you should handle your tractor. What predators are of concern.

Generally, peeps have tractors to move around on their green grass/weeds/etc.
This way chickens do not destroy vegetation totally, and keep getting new areas continuously. If you live in a desert area, you would move it around to keep from getting too hot, or cold.

depending where, and time of year.
A tractor should keep predators out. The base needs to be good enough not to be easily lifted by predator. A level or flat ground is also very much needed/desired.
Many peeps raise broiler chickens in tractors,,,,, because they are eating machines=pooping machines. They move to next area for obvious reasons.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,and
