Rooster with swollen face

[mandarin1]

Look at the photo below. See how the canker is invading below the tongue and filling the cavity underneath. I bet there is a "pocket" of infection under there that is causing all that swelling.




https://www.chickenvet.co.uk/news/post/a-review-of-oral-lesions-in-backyard-chickens
View attachment 3923494

Thank you for the info. I will see if I can get a better look inside his mouth and try to get some out if that is the case.