I thought one of the girls was broody this week because she stayed in the laying spot every night. Its dark when I go to work & dark when I get home so I couldn't see in the coop....just do a head count & check for eggs everynight. Well today is my day off & when I went in to clean the one wasn't broody at all - she had been attacked pretty good. Her head is all bloody & scabbed. I thought she was dead but she's still alive & very weak. I've brought her into the back of the house & have her snuggled in a laundry basket. Just bought some pediatlite & got some into her, cleaned her wounds. I feel just awful - had I seen this the beginning of the week I could have removed her then . On top of her stress we've been in the teens all week - below normal temps. From what I've read on the forums I guess I'm doing everything I can for her (possible shock?). She's a RI red - one of 5 chickens. They're all a year & 1/2 old. This is the first they've gotten really agressive with each other. I'm wondering if it is shock, how long does it last?