Building A Chicken Coop - Brilliant feed bin idea. No scrapping around or wasted feed on the floor. And the feed stays dry in the rain. - Building a chicken coop does not have to be tricky nor does it have to set you back a ton of scratch.
This would work for feeder too, sized to hold inverted 5 gal water jug. Base is lifted to keep them from getting dirt in it. Outside in coop run area. Feeder / waterer on top of sturdy plywood & galvanized awning so can be accessed without entering run