I'm new to raising chicks, and I just lost two of my girls after 2 weeks. We've been keeping the temperature between 80 and 85, but in the box we're using there's no place for them to get away from the light and into some shade. Have I made a critical error that cost me two chickens? Could they have gotten dehydrated even though we keep their waterer full? We've purchased a small coop that gives them a place to cool down, but I don't want to lose any more! Any help or bits of wisdom are greatly appreciated! Thanks.