Which do you use and how old are your chickens? My big ones are 6 months and I bought them pellets, they made a HUGE mess!!!! So i finished that bag off and bought them crumbles. Now we have 2 feeders of crumbles and one of pellets, they wont touch the pellets...and they still make a mess with the crumbles... Im wondering if it is the feeder i am using, made it myself. these are the feeders i am using, right after the coop was finished.