i have a purple orpington rooster and he has these bumps or little tumors around his eye. It’s not fowl pox. Then I noticed he would lose his balance some. He’s kind of listless. He is eating and drinking. Now the rooster next to him who is a lavender Orpington, is losing his balance. He doesn’t have any bumps around his eyes. Both are about three to four years old. What could be wrong?