When I look, there is no liquid mucus. Just some dirt looking stuff, an the occasional wood chip shaving.
and awwwhhhh!! I assume you'r roo is spoiled rotten now?
He was all white, even had a white beak, legs, etc..if I didn't know better I'd say he was an albino. .lol..but I couldn't really see the mucus, but after pulling stuff off and out of his nostrils 20x a piece finally came out wet looking... if you're not against antibiotics, maybe wouldn't hurt to try them for a week or so and see if there's any change?
If it were just sneezing, I would say allergies..but I've raised a lot of Polish and even tho their nostrils are huge compared to most breeds, they generally don't get debris in there without an underlying issue..unless yours has even exceptionally large nostrils even for a Polish?
And yes, he's living the life now...went from a "gutter baby"..literally caged in a dog crate 24/7 with a lot (didn't even count, but I'd guess at least 20) other roosters, all bigger. .6 or 8 inches of packed waste on the bottom, don't know how they didn't starve to death or die of dehydration. .
I lost a couple in the first few days..assume organ damage was too bad from the long term neglect. But the rest survived and are happy boys..I have 3 here that are yard birds and have a couple hens each..they all ignore the coops completely but all 3 roost in the top of a stall every night and their girls all go in one coop together..
The Polish boy turned out beautiful..i wanted to keep him but bc of the mucus issue, I was too afraid to introduce him to any of my flocks.. so he has a cockatoo and a duck as roommates, literally goes on walks to the park and everything.. I'll have to find the last pics she sent me of him.. if I were a rooster, I'd gladly trade places with him..hahahaha..