I love the warmer idea... Mine are a week and a half old and they are starting to jump on my finger already... like a parakeet! I found this to be funny. They scatter when I put my hand in, but 9 times out of 10, they are asleep in my snuggle within a few minutes. I am having trouble keeping them inside their box when I clean their brooder though... All 4 of them like jumping out... I think I better use a taller box.