about the different kind of chicken feeders, i invented a feeder that is not wood , or metal , i make this very simple feeder out of a plastic bucket , i got from the dollar store for $1.79 i believe that was the price , i have been using them for a year now and they work the best ever, i have tried many kinds of feeders , my husband when he was alive built the wood type of slide feeders and other kinds of automatic feeders that fill from the top down , some how the hens would figure a way to knock the feed out all over , and i was not going to pay for the hundred year old out dated old metal feeders they charge top dollar for plus extra for shipping & they are a headache to use, so after all of that , one day it dawned on me this very simple design , i wounder why no one ever figured this out before..? HA ,but it can work out side or inside and wont rot like wood & wont rust like metal , its just a cheap plastic bucket HA

and so inexpensive its down right funny, and its better then any other feeder i have tried , and i hate to see spilled feed on my coop floors , in AZ i can keep hard wood floors that are constantly dry because of the dry climate here, so hardly any work to clean up my coops , with all my flock out free ranging all day , and this feeder design solves that problem of spilled feed and its controlled by how hi you hang it & so to make one , i just took a bucket and about 3 inches up from the bottom , on the out side wall , i cut an arch , in the side of the bucket, a simple arched opening & hi up as you need it so the roos comb wont get caught in the arch opening ,then cut along the bottom so you end up with an arched door opening in your new cheap dollar store feed bucket, but dont cut up to hi , you need a good rim along the top part so the top will still be strong , and thats it.!!! hang it from the bucket handle on a hook in the wall and there you have it , and the chickens can get their heads in it and cant do much more then eat as much as they want of the feed thats right in front of them but no spilling ,if they can get into it to far they can spill feed & if thats happening just raise it up an inch or so to adjust it .i hang mine on the wall ,that way they are easy to fill and control , maybe a square pail would be better for hanging against a wall , but hey the cheap round bucket works fine to..HA and for out side i put a cover over the top out of metal sheeting / metal roofing or wood & shaped it into a circle that extends out past the top rim of the bucket so the rain cant get in & hold it down with a few stretch cords ,you could also buy the plastic pails with lids for like $5.00 each, but the less spent the better..!! i always say , ill take some pics of mine, and post them, but thank goodness now there is never any spilled feed on my coop floors. or any were, i also make smaller ones out of gallon water jugs that work great , im a recycler , and always looking to invent the best stuff that works..!!! & for free or almost free ; ) as i see it free stuff is the best stuff..!