I have 3 chickens that I have to leave in their run (4x8) on the 3 days I work outside the home. I have a kitty litter pan for a dust bath for them (sand, dirt, DE, wood ashes). So far the only thing they seem to be using it for is to poop:/. I scoop it with a litter scooper, but I'm wondering... Will they use it to dust bathe in if they've pooped in it? What can I do to keep the poop out? On most other days they free range a lot, but in the winter I'm sure they'll spend a lot more time in the run. Any suggestions/comments would be appreciated. Thanks.