Mine are all noisy little things. Bailey and Little Dude make a little noise with every step they take.Mine were quiet to begin with but now they chunner and chatter to one another. Quietly wheek a little, chirp a little, one makes different noises to the other. But they're not the loudest pigs out there and I'm glad about that, they fit with our reserved personalities very well. Not that I'd blame a loud wheeker for wheeking. They're piggies!