We have a really old rooster of about 9 to 10 years of age. Yesterday afternoon we noticed his right cheek had become swollen, and he had mucus or other discharge on his beak. At the time someone suggested he may have just been stung by something and he would recover, but it's been over 24 hours and he still has the swollen cheek. I noticed far less weird stuff on the beak. I am worried he may have some contagious respiratory illness. I'll see if I can convince his legal owners to take him to the vet, for his sake as well as the flock's. In the meantime, I'd appreciate any input if anyone has an inkling of what might be the issue.