Hello all. I am new to this and have some questions that may be basic but haven't found the answers. Do you close a/the door to the coop at night so they stay in and keep everything else out? Have any of you used wood pellets (like for pellet stoves) on the floor of your coop? I see many of you use sand in your runs. Don't the chickens eat the grass/greens, bugs etc...? Do you keep any sort of light on in the coop at night? And last question. Does raising chickens attract a lot of rodents, mice, rats, etc? Thank you all for your help.