Kecking or Kacking during the night

I'm almost positive now that the sound Carl makes every now and then during the nights is a Kacking. I'll get up and check on him but I'm not sure what's causing him to make the sound. I know he can hear stuff I can't, and we have a cat who likes to run around during the night as well so he could just be hearing him but it's still concerning hearing him make that noise. Does anybody else's chinchilla do this? The only good thing is, it doesn't last long. He'll kack maybe 7 times at the most in an hour and then he's fine the rest of the night. Should I be worried?





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