Well, countrymom, we are just a bit north of you, and so far ours seem to be doing okay, except one roo, Hawk. I had to bring him inside, he was shivering and getting dehydrated (our water is outside in the run, not heated, and the rest seem to be fine with that). We put up two heat lamps hanging from the rafters, and I have been going out to check on everyone. As long as they are protected from the wind, they should be okay. Even our horses are staying out of their stalls, just hanging around in the windbreak eating their hay. I hope that yours make it through the day - it should be warmer by this weekend.
BTW - thanks everyone for the vaseline idea - it's a little late now, as I just read it today, but I will remember it for the future (if we have another cold snap like this again).