We recently bought two 3week old muscovey hens. We are keeping them in the coop while the rest of the flock is free ranging. We have a little fenced area that we bring the babies out into to play and forage. Accept every time we do this they do not play Or forage they sit at the fences edge and peep. I'm not talking about the little peeping they will do I mean loud omg I'm going to die peeping. What could the reason for this be?