We are moving this weekend and it will be at least an 8 hour drive. All of my animals will be traveling inside SUVs. But I have two concerns about the chickens. First, Mildred will be about six weeks old. Is she still susceptible to drafts and temp changes, like a window being cracked or anything? I intend to have her in a small airline crate, covered, and possibly put a hot hand or two in a sock in there. Second, Harriet (not quite old enough to be laying, but basically full-grown) open-mouth breathed the entire way to and from a vet appointment a couple of weeks ago (35-40 minutes one-way). I did not think to cover her cage at the time. Open-mouthed breathing in cats and chickens scares me - especially with Harriet. She was quite upset and never calmed down in the vet's office, so she ended up breathing like this and sort of being in a bit of a panic for hours. Aside from covering her cage, is there anything else I could do to help her out on the trip? And should they both have water available to them?