So for everyone that raises their chickens far from a building what do you use for storing your food close to the birds. I now have 12 tractors with 63 birds in each tractor. Walking back and fourth with 5 gallon pails is getting really old. I need to find something that can hold at least a ton of feed as I would spilt the container and keep my hens feed that range around the tractor in these as well. Also, needs to be predator proof. Any recommendations?