Yes, mine make that noise a lot! Hermes especially does it. He's very happy, I think he just likes hearing himself make noise! What I've found when he gets especially loud (like it hurts your ears loud ) is to distract him by giving him something to listen to (i.e. music, talking), and therefore concentrate on it. He has to be silent while he figures out what he's listening to. That said, it only takes a minute at most before he joins in with the noise. I enjoy it, though!
"For what does it profit a man to gain the world and forfeit his soul?" ~Mark 8:36
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