My only idea for your dilemma is to have a serious talk with the rain gods. They don't listen to me.
Rain, rain, rain, I think everyone is probably having the same problem unless they keep their birds on concrete. Hey there's an idea!
Sorry Lakones I don't have any good advice for you. Believe me I've been thinking about the same thing in my run/s. Other than to put rock down where I walk I don't have a solution. I think pine needles and leaves would only prevent the ground from drying out.

