Thank you both so much! We are fairly new to chickens and I haven't checked her for mites or lice. I'm overwhelmed with possibilities right now. I guess we will start by bathing her and separating her.
I haven't but we don't observe them much when they are in the run, only when they free range. I have seen HER pecking and grabbing other hens occasionally though. In your opinion, does it look like an injury and not a parasite, bacteria, or fungus?
I'm not sure if those are new feathers or...
Our property is surrounded by orange groves. We originally thought coon but reading the details on coon attacks it doesn't match up. I think you're right! Now, how to keep it away.
Any ideas on what would scale a 6ft run, pull apart the fencing on the roof and pluck a rooster from his roost? Only a trail of feathers was left behind.