Do you hear like a guttural rumbling before he makes the sound?
Does he have any symptoms of respiratory illness? Mucous, watery eyes, facial swelling, etc.?
Check inside his beak just to make sure it's clear of mucous, lesions, obstructions and canker.
I would also check the crop first thing in the morning before he eats/drinks - see that it's empty.
Can you answer the above questions? Also how long has he been making the noise and does he only do it at certain times like during/after eating/drinking?
Hi @LoveariverWelcome To BYC
Can you take a video of your rooster so we can hear the noise he is making? (upload to youtube, then provide us a link)
Does he have any symptoms of respiratory illness? Mucous, watery eyes, facial swelling, etc.?
Check inside his beak just to make sure it's clear of mucous, lesions, obstructions and canker.
I would also check the crop first thing in the morning before he eats/drinks - see that it's empty.
Hopefully with video or photos and a little more information, we can give you better suggestions.