I live in an urban area and want to use my side yard that is fenced with Cat Fence In (it keeps my own cats in and neighborhood cats out) as a secondary, supplemental forage area for my future chickens. Is there any problem with diseases between cats and chickens? Can I plant forage crops for my chickens and will it be safe for the chickens to eat these crops? My two cats spend most of their time indoors and have three litter boxes which they use, but they also use the dirt in the yard when they are outside. Is this OK or will that harm the chickens?? Appreciate any help anyone can give me. Thanks!