Friends of my sons have been raising some meat chickens on our property.They will process them next week .They used a bottomless pen and moved it over every square inch of my yard.Soon I will be putting my own RIR chickens out there and I'm wondering if I need to clean up after the first batch so mine don't catch anything.As far as I can tell they have been healthy,but I've been very hands off with their's. Any advice?