I saw this idea in an issue of Backyard Poultry. It was a 5 gallon bucket that had 4inch square holes cut into it near the bottom. It was told that this would be a good feeder for about 15 birds. I am curious to see if anyone has designed or used this design for a feeder. I have several 10 gallon buckets from a catering company that I want to turn into feeders. I just don't want to drill holes and have feed wasted and spilled if I put 4 inch holes near the bottom for the birds to feed out of. Suggestions?