I have a sick barred rock. She is about 7 months old. I started noticing a little oddness in her behavior about a week ago. Last night when I gave them thier treat she was already on the roost and didn't come out for the treats. This morning she was outside with the other girls but laying down and did not come running for treats. I noticed she has runny green poo. I inspectors her and did not see any obvious issues. The fact that I picked her up is a sign she is sick. She was the hardes to get a hold of. I put her in the garage with a heat lamp some corn and water. She is mint moving around much but she is eating and drinking. Any guesses on what might be wrong?