I have my first batch of meat chickens that are 6 weeks old now. The pen they are in now I made by enclosing a trampoline frame with hardware cloth, then put chicken wire and a tarp over the top. I also put in an old wooden dog house that I outfitted with a 75 watt bulb for some heat when they first went out and the temp were in the low 40's. We ended up having to line the sides of the pen with logs cut 18 inches long, because of a fox and pack of coyotes that has started to come around. Now that the pen has about 40 logs around it, it obviously can't be moved. It's been very rainy here, creating a lot of mud. To keep the chickens cleaner both because of the mud and their droppings, I've been putting down layers of hay. It works fairly well, but they are still muddy on their undersides. I'm wondering if there's anything better that I could be using, or if this is just normal for meat birds? I know most of you have movable tractors, but that's not an option for us. For those of you who don't move them around, what do you do for flooring? Thanks for any suggestions/advice!!!!