I have 3.5 week old White Leghorns and I'm planning on moving them into their coop this week - they'll be 4 weeks old on Saturday. We're in VA and it's been 90+F in the day & humid and 75-85F in the evenings. Can I simply move them out there with a supply of water and food? Do I need to put a heat lamp out with them? Should I leave them in the brooder in the coop or give them free run of it? I'm finishing up the hardware cloth this week and painting the coop in preparation of their move. My plan is to put them in the coop on Thursday morning to stay. But of course I'm nervous about it.