Is this feather damage and wounds from too many cockerels/too aggressive cockerels?

[HeatherKellyB]

Hello again! I ended up removing the boys every single day, at sunrise, and keeping them away from the girls until I go to bed at night, anytime between 10pm & 12am. During those hours, everyone is locked up in the coop with no lights. I haven't noticed any improvements with Amelia Bedila's back, but no open wounds anymore, just more missing feathers, throughout the day. Well, this evening I gathered the boys up to switch them from free ranging to the coop

(no possible interaction at all between boys and girls) and noticed a nasty looking wound on Amelia Bedila's back. I believe she's also suffering from possible bumblefoot, that I've just noticed and started treating today. So, is it possible that one of the other pullets is doing this to her? If it's going to happen, it will to this poor girl. I feel so bad for her.

 

[HeatherKellyB]

Apparently my Calico Princess or Midnight Majesty Marans (Hoover's Marans Mix) is being a bully. The other Easter Egger, Junie B. Jones, has also been pecked. Now to figure out which one is doing this. I witnessed the Calico Princess grab the comb of the Marans Mix and get overly aggressive (I know higher pecking order birds use this tactic, but it seemed a bit extreme) to the point where I had time to intervene. It's just going to be separating for now, as I'm working on extending their run. That could be the problem. Here's hoping it is. Thank you for your time

 

[50-45-1]

I would put some healing cream on your hens wound on her back. Something like corona, bag balm, or triple antiobotic or niesporin.
A open wound like that could get much worse very quickly if the other start to pick at it

 

[HeatherKellyB]

I got her out and washed up the wound, sprayed with Bannix and applied a thick coat of neosporine. Amelia Bedila will be separated, along with her Easter Egger sister, Junie B. Jones, anyway while I keep her confined because of the bumblefoot and finish the run extension.