I was wondering what you do for the bottom of your run. Do you have anything there besides the ground? Hardware cloth or chicken wire? Great visual; thanks!
I have wood shavings. I go in every couple 2-3 days and scoop the excess litter and once every 2-3 weeks I replace it. Now that they are old enough to roost (and they fly up as high as they can get) I don't have to
do it as often because they aren't lying in it.
Yes it is just the ground. I had researched about using lime every so often to kill bacteria/mold/etc. So if it's wet for an extended period of time I will do that (following the directions I found online)
My chickens
are old enough to free range now, so as long as I feel there is no threat of predators, I will let them out (which is most of the time) if there is severe weather, I have them to stay in the pen for ease of rounding them up.