Hello I’m new here and new to chicken keeping! I live in Southern California and have an outdoor run for my two chickens. I’ve browsed through the forums looking for answers but I haven’t been able to find a definitive answer. The run is covered and is on the top of a slight hill. The rain recently however has caused it to become a muddy mess. I can’t decide between straw, landscaping bark (no cedar right?) and sand. They have a rabbit hutch and a repurposed litterbox cabinet that I fill with PDZ. I did place some sand before the rain and it has helped but I didn’t get enough in before the rain so much of it sank into the mud. We usually only get rain intermittently during winter. Thanks for your help!