My Guineas can be noisy. A neighbor down the road thought I had some alarm always going offI have a couple Mulefoot hogs. Everyone that comes over can't believe we have any as they can't smell them. It's really about space.
We had turkeys too, and they never smelled. Again it's a space issue, they need plenty. They just would never shut up and it annoyed me so we sold them.

Guineas actually stink worse than chickens. But it's comparable to a horse stall, not bad, you smell that earthy smell when cleaning the area itself, not any other time. I guess I'm odd, it doesn't bother me. I can definitely smell when a bird is not feeling well though, either not well poo or a sour crop. Sometimes the bloodhound nose is a curse, but most times I guess it can be a blessing when it comes to catching a health issue early on.
I planted Mint, Marigolds & Lavender plants around the coops. I mostly smell those.
