Help with sick rooster!

[Chub_nuggen]

Hi I need help with a rooster. I don’t own him but I feed him along with other chickens that roam around my house. I noticed he is limping from the right leg and his right wing is drooping as well. He has foul smelling poop and it stays stuck to his bottom and it seems he’s having labored breathing. Can anyone explain what is wrong with him and how to help him?

 

[BigBlueHen53]

Can you catch him (at night maybe, after he roosts) and do you have a safe place to keep him?

 

[Chub_nuggen]

Yes I have him in a cage.