That's cute!
It certainly is interesting in a multiple bird house. Lucy and Jessie can't fool me very often anymore. They make similar noises and say the same things, but I can usually tell them apart - although I'm the only one in the house that can do that. They have distinct voices that I can tell apart.
Lucy used to do this all the time to me when we were in the condo. The smoke detector was right beside the kitchen and it was VERY sensitive - it was a small condo and they were kept as far away from the kitchen as they could. Sometimes all it took was using the toaster to set it off. Lucy came to mimic the smoke detector perfectly ... one time she fooled me enough that I actually got up and started fanning the smoke detector ... and I knew I wasn't even cooking. She also mimics my old cell phone perfectly and to get her to stop, I need to say hello. She's fooled me a few times with that too
For me, it will be interesting once we add Kylie to the flock. From what her current owner has told me, she is a pretty quiet bird - All I've heard her do is small beeps and sqweaks (sp?), but then again, maybe she just can't be heard over her Amazons, Cockatoo and Caique's. While Lucy and Jessie are not that loud, they do talk alot and mimic lots of noises. So it will be interesting to see how they influence Kylie
Have fun with Scooter and Scotty ... it's very entertaining having more than one.