Hello !I have 4 hens. I noticed the a few days ago that one of them had been pecked on her back down by her tail, missing feathers and bloodied up. I removed her from the coop 2 days ago and she has been on the mend. I put vics on the backs of the other hens trying to prevent any additional pecking for my other girls in the coop. Today when i got home from work i had another injured bird again the feathers were missing from her back and bloody. I checked over the other 2 bird and one had been pecked badly on her sides by her legs. The other who must be the bully was injury free. I have separated the hen who i think is the problem and put the other 3 girls back in the coop with injuries cleaned and covered with blu kote. I also put more vics around the area but not on the injuries. The local feed store said it could be lack of protein and boredom. Can anyone help with information about this and the best way to stop it? Im worried that the 3 girls are going to start going after each other.