I bought two chickens at an auction and have had them for four days and not once have a caught them off the roost bar. Today I even open the door for them to free range and they stayed in all day and everytime I went to check on them they were in the same spot. The are adult hens and a little beat up. Once missing part of a beak the other one a lot of back feathers gone. Any suggestions on this odd behavior? No signs of sickness but I'm also wondering at this point how much they're eating and drinking. I'll add I was hesitant to remove them from the coop and put them outside with the others because I do want him to return at night.