Hahnsie's are ALWAYS up to something .. lol ..
Not "couch potato" birds at all ... at least, not mine .. nor Holiday's or Joanna's from what I've seen/heard. My guys will be into anything that strikes their fancy, not shy birdies at all. New toys, new perches .. nothing phases them.
I personally don't find them that loud, but I own a B & G Mac and a RF Mac that can shatter glass if they chose to, so it's all relative. They are considerably louder than my Quakers, Cakes and Pois.