I also use the metal garbage cans. I have a separate building just for feed and carriers and other supplies. Have bears that have broken into the building but did not get in the metal cans. Over the years I have used plastic garbage cans and paper composite 55 gal containers. The squirrels and chipmunks and mice will chew through those, and so that is why the switch to metal.
As a side note. A few years back someone dropped off a female cat here. The people come to the rural suburban area and think it looks like these people could use another cat ? In any case, it had kittens, my wife took a liking to them, her Shih Tzu loved to play with them, and the next thing you know there are seven cats around. There were no more pesky squirrels, chipmunks or rabbits around. The cats lived in a detached garage and had very pleasant accomodations with good eats. Then in December in one weeks time all the cats became prey themselves. My son came home late at night and saw a fisher run from by the house, and the next morning there was a dead cat where he had dropped it apparently. So in a weeks time one fisher killed seven adult cats.
Now I am once again overrun with squirrels, chipmunks and rabbits. So it is metal feed containers for me.
As a side note. A few years back someone dropped off a female cat here. The people come to the rural suburban area and think it looks like these people could use another cat ? In any case, it had kittens, my wife took a liking to them, her Shih Tzu loved to play with them, and the next thing you know there are seven cats around. There were no more pesky squirrels, chipmunks or rabbits around. The cats lived in a detached garage and had very pleasant accomodations with good eats. Then in December in one weeks time all the cats became prey themselves. My son came home late at night and saw a fisher run from by the house, and the next morning there was a dead cat where he had dropped it apparently. So in a weeks time one fisher killed seven adult cats.
Now I am once again overrun with squirrels, chipmunks and rabbits. So it is metal feed containers for me.