I have a couple chickens going through a fairly hard molt right now that just got over a respiratory infection a few weeks ago. I have seen them shiver a little... they have a great appetite and have come out on the snow/ice horribleness we have right now, but the shivering is concerning me. I've hesitated to bring them into the basement as they will lose their acclimation. It's going to be near 0 tonight... seeing as they just got over being sick and i've seen a couple shivers, should I just bring them in, or am i being way too overprotective?