My run is muddy when I first go in also. That is where their water containers are and I put a lot of water in changing it. I had put new sand in but the mud has appeared again by that area at least. I have thought about putting a plastic pallet by the watering station and putting indoor outdoor carpeting on it. I have one already. Gotta come up with something.
Oh yeah, the mud! So! Much! Mud!
A full day of rain and water accumulating in any kind of depressed terrain which also means the footpaths (which have been bare soil so far).
Shallow water and ducks... We all know how that goes.
Right now... If I brought in pigs, they would give the situation one look, declare that everything that could possibly be done here mud-wise has already been done, and leave.
Bringing in several wheelbarrows of sand tomorrow.