Just an update on my drake he is still recovering but I have a question his penis looks like its dead tissue about a half inch of it is still pink and healthy looking but the rest looks like its all dead so I was wondering if I can put a rubber band on it to get rid of that part I don't think it does him any good anymore anyway but I still need an opinion
I haven't done it, but I am pretty sure there are some posts in the archive here about removing the necrotic tissue from a prolapsed phallus. That would be the way to go.
https://www.backyardchickens.com/newsearch?search=prolapsed+phallus might find some info here on removing the dead tissue before using the rubber band. Plus he would probably remove the rubber band and possibly eat it or someone else would then you'll have a different problem.