Just got a bearded dragon and have been giving her crickets every two days. Decided to get hoppers as a treat, gave her two and found an undigested head the next day in her stool. I'm not quite sure why this has happened. Could this be due to the change in her diet? And is it safe to continue giving her hoppers as I still have most of a tub left. Apart from that one stool she has been normal and this was the first time she has ever had hoppers.