Yesterday I picked up two 14 week black giant pullets. They appeared to be living in a large horse stall with 20+ other birds. They seemed very scared when I brought them home and put them in their coop. One didn't exit the box for almost an hour. Today the same one has barely moved, she is just laying in the coop. From what I can see she hasn't ate or drank anything, even when I bring it to her. She did get up and leave the coop when I tried to offer water, and I saw her walking yesterday. I'm worried that she isn't eating or drinking. Should I try to force them to drink?