Hello! I just recently bought coturnix quail and they’re about a month old. I have 20 of them in this coop attached below. During the night they tend to huddle up in the corner underneath the branches that I have for them in there. They don’t use the upstairs area, they just stay downstairs. Their flooring right now is just sandy soil. It will be around 40-50F at night this week and the wind speeds will be around 10-15 MPH. Is this too cold for them? Should I put some straw for them or is it necessary to cover the sides so wind doesn’t get in? TIA