Raccoon attack injury!! - Wound keeps bleeding, how do we treat this?

I'm so sorry you have to go thru this.
The first thing to do is calm down, and get the bird to calm down, too.
If she senses you are upset, it will not help her to relax.
Breathe.....
Wrap her in a towel, I have special ones just for bloody messes, or you will have to think quick which one you won't mind throwing out.
Don't use the good ones, or else mom will be ticked!
Try to clean out the wound as best as you can, raccoon saliva probably has nasty germs, and they do carry rabies.
What do you have in the house for injuries?
Betadine, saline solution?
Do you have Neosporin?
And try to keep calm.
You need to see how bad the wound is, if it is just scratched, or deeper.
I would just do this in the sink, and rinse out first with warm water, and then the betadine.

It depends on how bad it was.
If she got taped up, depending on how bad she feels, she can leave the bandages on, or, if she feels pretty good, she will rip them off!
Now you just have to wait and see.
Just keep them covered for a few days, but check under them to make sure they aren't getting infected.
And keep her separated from the others.
You really need to make the chicken house a bit more secure, or it will happen again.
Once the raccoons know where the drive thru is, they will keep coming back to feed.
Good luck with her!
Roberta

Of course special treats, because she deserves them.
Scrambled eggs, everything that is good for her, maybe some electrolytes in her water.
If you have some antibiotics, but not yet.
Just make sure you can get your hands on them if she starts to go downhill.

The best way to keep her calm right now is in a warm darkish area.  She will be in shock and may not eat for a while, but make sure she has access to water with electrolytes or gatorade.  Good luck with her!

Rest is the best medicine right now, so she will survive a few hours without water.  A good source of electrolytes would be Pediolyte or gatorade.  Electrolytes help put back added nutrients (sodium, potassium, etc) that an animal or person under stress or sick loses which could cause them to become worse. 

Once she is eating, high protein (eggs, meat, mealworms) foods will help her heal faster.

Once you are awake and she is calmer, a soak in a sink full of warm water with diluted betadine will help clean the wound plus any other wounds that you might not see under her feathers. 

Right now a covered box should be fine, as long as she can breathe and is warm.