Hi, I'm new here and have received for Christmas ten new baby chicks from the feed store. Production Reds, Delawares, Gold Laced Wyandottes, and Silver Laced Wyandottes. They are around five weeks old and have most of their feathers, although some have back feathers (right in front of their tails - between the wings) and their head feathers coming in. I would like to get them into their 8x12 enclosed coop because yesterday I noticed several had bright red dots of fresh blood on them. Closer examination revealed it is where feathers were, and today I saw one of the Delawares with one of the Red's feathers in it's beak. They are currently in a box that is a little larger than 2x3, which I thought would be enough room since they were very crowded at the feed store, but I realize they may need more room. I am in Abilene, Texas and am concerned that they will be too cold at night. Typically we get down to slightly below freezing at night and warm up to the upper 40's/50's in the day, but lately it has been much cooler. Later this week night time lows are forecast to be around 10 degrees. Will they be OK outside with a heat lamp and pine shavings or should I go find a refrigerator box for them? Thanks for the help!