I've had issues lately with mice getting into the free feeder I have set up for feeding pellets to my chickens. Mice poop gets in it, and I have one chicken who is avoiding the pellets now. I'd like to set up grandpa feeders soon, but want to think of other options in the mean time. For those of you who feed your chickens at a scheduled time and amount: -How often do you feed? -How much do you feed? (I want to avoid extra food being left out as much as possible) -Or do you put out food for a certain amount of time and then put it away...? Thanks!