Yesterday, late, I found a good number of small feathers on two spots of my front front yard. I thought they were from one of the Buffs. I looked them over and didn't see any thing out of order. Today I look at the feathers again and saw a red tint to them. I looked at my EE hen and found her neck feathers from one side of her neck to the other had been pulled out. Whe has a hood like set of feather covering that area but under those it bare. Her neck is completely bare. She does have a slight discoloring on her back to one side. Kind of a gray color in 3 spots real close together. I'm out a lot of the day and have seen nothing in regards to a predator. Just squirrels by the bucketfull. What could have done this and do you think the bare neck is going to cause a problem during the cold weather? I thought Bob may have done this but I've never seen him show any aggression whatsoever. She's also not a timid bird. That I've seen sorta toward the top in order. I just don't know.