I am fed up with tattered gardens and poop and made the decision to pen up my 4 girls. Now the Red Sisters don't mind but the other two are depressed, I think. They have only ever free ranged their entire lives; I feel bad for them but I am hoping they will adjust. Have ordered another pen so they don't have to share with the Reds but I am hoping they won't die from depression... do you think chooks can die from depression???