thecatumbrella
Furiously Foraging
I know this is a little late to the party, but we've been really happy with the Harris Farms Hanging Feeder from Amazon. Zero waste (if you position it high enough), 6-8 can comfortably eat at the same time, and I feel a little better about rodents with it hanging up. Also super easy to wash, because I'm insane and actually try to keep my chickens' stuff clean. I put a bird baffle over it to prevent crap from getting in the top, with the unexpected perk that it now looks like a mushroom 
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