Hello! I'm new here, not a new chinchilla owner. I started out with two chinchillas, both male, standard grey, Butters and Dougie. Everything was perfectly fine until one day Dougie passed. Butters was so depressed, he wouldn't let us pet him anymore. Just kacked. We bought a baby boy and named him Timmy. He's such a sweet baby! Too little to house with Butters, I had them seperated to quarantine him for a few months. Eventually I split Butters' 2x2x5 foot cage in half so Timmy got the top half and Butters got the bottom. I'm going to let Timmy grow up this way in hopes of him getting along with Butters in the future. They met once, Butters did not like him and now Timmy is scared. They both got ringworm, were seperated, have been treated and are in the same setup again. Since being together again I've been hearing noises.... They will not make them when I'm around, they're in a wallway with the door always open.. I hear a low woo woo noise and then a higher pitch woo woo noise in response. The lower noises are more often, I suspect they are Butters? Are they just talking to each other or is someone upset? Timmy seems happy and likes his chin rubs as normal. Butters also seems happy and enjoys his head pets as normal too. I just want to make sure nobody is stressed out!! Thanks!