I have a large white chicken (the heavy layer kind from McMurray's) who got out of the coop over a week ago. My faithful dog was trying to help put her back? He doesn't like any of the livestock not being where they should be. She lost many of her tail feathers and half of her neck feathers. She seemed otherwise unharmed at the time. Over the last week however the other Hens are now picking on her (hen pecked?) and she has lost almost all neck feathers but her rear end is now discharging dark red blood, she has lost weight and basically looks like crap. I am new to chickens and have not done any treatment since I have no experience and this is our first attack. I am not willing to spend a lot of money on this bird as she is several years old. I was planning today on possibly moving her to a dog kennel? She is eating and drinking if she can get there before the other hens attack, she is currently still laying, blood increases with laying. I am thinking she should be culled. Any guidance would be great. Thanks I have 6 Large white, 5 Blacks, 2 speckled and 23 RIR's in an enclosure 60'x60' with two coops and 10 boxes. I can post pictures if that helps.