I have three 11 week old pullets ( BO, SS, and a Columbian Rock) and for the past two days they will come out of their coop in the AM then around noon just wonder back in, only coming out if i have treats. Now, i just mixed in 4 eight week old silkies with them a couple days ago. Maybe this has something to do with it? The silkies wont go in the coop until night when i put them in there at like 8PM because they cant climb the ladder yet. Could my big girls be trying to get space from the new ones???