My two chicks are four weeks old, very unhappy in the small plastic bin they are currently in. I know they'd be much happier in the coop. They are also loud and stinky, and we'd be glad to have them outside. It's in the 60s to low 70s at night, higher durring the day. They've started getting all their feathers. Do you think they'd be ready to go outside? If it makes a difference, one is a Buff Orpington and one is either a Speckled Sussex or an Easter Egger, not sure witch.