They do make a few sounds but mostly when they are unhappy or hurt and rarely. They will snort or grunt and sometimes growl when they want you to STOP doing whatever you are doing. Little ones may make a little whiny noise or quiet squeal when you pick them up and they aren't used to you. And then there is the blood-curdling squeal they do when they are hurt severely or very scared when a dog grabs them or other predators. It is supposed to be scary enough to make the predator drop them because of the loud noise.