Nope, no noises yet. They've been extremely shy since they arrived. I rarely manage to catch a glimpse of more than one at a time--when they see me come in the room at night, they vanish. Quick little things. They're eating well, though. I haven't seen them go for the CGD/peach mix yet, but then, I haven't seen them do much of anything other than poke their head out of the bamboo after bugs. lol
Every once in a while I'll come in, and they'll be all over the glass, but within seconds they're gone.