Wing injury. Dislocated? Broken? Urgent!

[GermanKennhuhn]

Someone help me.
I’m soo mad at my rooster right now
A leghorn cockerel lives in the same coop as my rooster. Normally I don’t put males together, but since the guineas in the other one don’t get along with the cockerel, I put him in with my rooster. Bad idea. They got along till now, and ironically, I was going to take him out in a few days.
I found him hiding in a corner of the coop, all bloody and scared out of his wits. Normally he hates me, but he barely protested when I picked him up. His comb is ripped up, his wing dangles and makes a grinding noise when I move it, and he seems like he’s in shock and doesn’t want to stand.
I know my rooster did it because he has blood on his beak.
How do I know if the cockerels wing is broken or dislocated? What can I do? I’m seriously so stressed out. To many problems.

Please help me.
@Eggcessive @Kiki @aart @casportpony @Wyorp Rock @Miss Lydia

 

[aart]

Sorry, I don't know what to do with injured wings.

 

[casportpony]

Can you tell where the abnormality and grinding noise is coming from?

 

[GermanKennhuhn]

Sorry, I don't know what to do with injured wings.

That's ok. No worries.

 

[GermanKennhuhn]

Can you tell where the abnormality and grinding noise is coming from?
View attachment 2183722

Thank you so much for replying! I'll go check in a minute. My phone's almost dead.

 

[GermanKennhuhn]

The noise/abnormality is coming from between the shoulder and the elbow, closer to the shoulder.
@casportpony

 

[Kiki]

The noise/abnormality is coming from between the shoulder and the elbow, closer to the shoulder.
@casportpony

Does it feel broken right there?

 

[GermanKennhuhn]

I’m fairly certain it’s broken just before the joint. I can feel the bone wiggle. It feels like this:

Sorry for the awful sketch. It’s roughly what I felt.
@Kiki

 

[GermanKennhuhn]

I also noticed this:

Is this related to the break? It’s really swollen in that area/the area of the break. It feels squishy.

 

[casportpony]

The noise/abnormality is coming from between the shoulder and the elbow, closer to the shoulder.
@casportpony

take a look at this:
https://theiwrc.org/wp-content/uploads/2011/05/Duerr_Splinting_Manual_2010.pdf