I found an idea a year ago on some chicken website to stop the chicks/chickens from wasting feed and it has really worked well for me.
I get buckets from Ingles bakery--1 gal. for chicks--3 gal for chickens. (5 gal. will work). Don't get the garlic butter one, they will not clean up. I take a 3 or 4 inch hole saw and drill 4 holes spaced around the bucket a couple of inches down from the top rim. The chickens can stick their head in and eat but don't rake the food out. You can hang them or set on floor.
For the chicks I drill them 3-4 inches up from the bottom on the 1 gal. The chicks can get inside but do not usually scratch the feed out too bad. I use these for the silkies too.
Just estimate the height the chick or chicken will need to reach its head in and eat.
Hmmm...sounds like an idea! Those one gallon ice cream buckets should work too?? I think this is similar to what Amy was trying to say also...I will definitely give this a try! THANKS EVERYONE for the suggestions!