I'm wondering when I can move my chicks from the brooder to the coop? The chicks are 3 weeks old and are huge. I have them in a big tub with a wire mesh lid and they are flying out each time I feed and water them and they seem so big in the tub now. They are all doing very well but my hubby keeps telling me I can't move them to the coop for another 2 weeks at least and I don't see how I can keep them in the tub. We are brand new at this, so advice is appreciated. Thanks!