This is my first year with 6 chickens. I have been free-ranging them for the summer and have only had them poop in the yard , garden, and on the stone wall. I haven't had any of the chickens up on the cars, or up on the house for that matter. 3 of the 6 lay eggs in the coop and 2 decided the greenhouse was a more comfortable location. The kids haven't had any tics this summer, either. And just as it starts to get dark, they all head into the coop for the night. I think it has been amazing. I did lose one of the poor things about mid-summer. I'm not sure what took it but it only left some feathers as evidence. I live in a very rural area so I wasn't too awfully surprised. I feel its better for them to run around and forage.