My 5 year old rooster went through a very hard molt last fall, that lasted quite a while. I took him to the vet, who thought his feathers were growing back in okay and could not detect a disease process at that time. Most of them did grow back in okay, but his left wing had 5 quills showing with no feathers over them, after the molt was finished. Now it looks like more like 11 quills are showing, only on the same left side and new feathers are missing over his right shoulder by his neck and his breast is bare and bright red, like it gets when he molts, only a bigger area than usual. He is a feisty boy, hard to take to the vet. Last fall when he was going through the hard molt he was sluggish and thin. The vet said it might be cancer or some sort of internal parasites, but thought it was more likely a middle ear infection, and gave him antibiotics and suggested I feed him scratch with his pills. He seemed so much better within 2 weeks of that treatment, until he recently started showing this new feather loss. He's still eating and drinking and mating well. I do think he is thinner again. Could he be molting again so soon, another hard molt like he had last fall? Could it be age related? He'll be 6 in September, God willing. I'm running out of money for the vet. Just paid for a hormone implant for a 3-year-old hen who has had reproductive Ascites. I'm wondering if this feather loss in the rooster is indicative of cancer?