I have 2 young chickens, their outdoor coop isn't finished yet, so they stay in the house in a birdcage at night and free-roam the backyard during the day. I let them out in the morning after the grass dries off and put them back in when it starts getting dark. Everytime the kids go in and out of the house, the chickens try and come in. I've probably chased the one chicken back outside 5x today...I am just waiting for her to figure out the dog door I have for my Mastiff. I move their food, water & grit outside with them every morning, they have plenty of shade, dirt, grass, whatever out there, so why do they want IN my house?