Could a hard molt cause a 5-year-old rooster to shake his head a lot? I was wondering whether feathers growing in on his head might irritate him enough to cause him to shake his head a lot?
It's possible... he could also have mites or lice crawling in his ears or an ear infection.
When was the last time you treated your flock for internal and external parasites?
While unlikely, he could also have gape worm. If you swab down his throat, you could see little red strings. That can be treated with Valbazen liquid goat wormer, which you can get from your local feed store or order online.
Does he have any other unusual symptoms? Balance issues? Honking, wheezing, gasping? Sneezing?
No, no other symptoms. I dusted him with diatomaceous earth in August. We had an outbreak of some sort of mites in May. I'm wondering whether the d.e. could have caused a respiratory infection. He's a mean boy. No way I could look down his throat, but I will ask the vet to do so tomorrow. That's what they get paid for; right? LOL. I did go in the coop late last night, wearing very thick gloves. When I held him around the chest wearing them, I thought I detected a bit of noise with his breathing, which I can't hear when squatting right next to him. The vibration I could feel through my gloves, I mean. Not bad or loud, not raspy or gurgling, but something? A bit of respiratory distress, I would guess.
I find that examinations as the sun sets are a better time for them... Also, letting them hang upside down by their feet puts them in a trance (and makes checking feathers around the vent for signs of lice/mites/nits that much easier--bottoms up!!).
Good luck with the vet! Let us know what they find.
Not mad. Just scared. They are blind at night. If you hold your index finger crosswise in his bill, you can keep his mouth open to do whatever you need to do in there.