HI i have 8 chicks that hatched in August. Five were put under mama hen and have been outside the whole time. Three my kids raised and were kept in our building till about 3 weeks ago. about 2 days ago, the cochin, started just hanging out in a corner, not a lot of energy, closing eyes etc. Pulled her last night, put her back in building on heat and vet said to give Baytril. There was a bit of blood in stool. She is upright, eats, drinks but just not a lot of energy. Now this morning her 2 buddies were all fluffed up and acting the same outside. I just brought them in with the cochin, same thing with them, a little blood in stool but they ate and drank immediately. Could the chill in the evenings have been too much for these guys since they spent from August till 3 weeks ago outside? Or, could the different food have upset them? Any help is appreciated as these are my 3 kids chicks and one is for her 4-H project this year. Don't want to lose them! Oh and the 5 that were raised by mama are all acting fine.