I had a hen acting a little ill this past weekend so I separated her and gave her some TLC. She is now looking and acting much better and I would like to reintegrate her back in with the other on Friday. This is not the first time I have had a hen separated and reintegrated them. I always try to get them back in with the others as soon a possible. Here is the difference this time is the room she is currently in has a temperature of about 65 degrees F. Friday thru the weekend is currently showing highs of the low 20's and lows in the single digits. The outside temps are forecasted to not break above freezing till mid next week. Should I have concerns of shocking her with such a huge temperature difference? As I mentioned I really like to try to get them back out with the others as quickly as possible just don't want to cause a bad situation from taking her from 65 to low 20's.