We have adopted a Desert Tortoise, and will be taking him back after 3 weeks for a check up. He has had a runny clear/light green and bubbly nose for the 3 weeks we have had him, but it comes and goes. My main question is he is still getting used to his new home with us, and seems to love and has found his burrow we made for him. He has yet to begin to dig. I live in AZ. So assuming it might not happen until it gets colder. Wondering when he should begin to dig his burrow, or if he already should have been attempting. Thinking maybe it's because he is not feeling like he should. I called the guy at the herpatological center where we got him, and he said the nose could be due to stress, and the move. Getting used to his new home. He does eat normal, most days..if he comes out. And his stools are grassy normal. Anyone have any insight, please let me know. His name is Prince Charming, and they guesstimated that he is anywhere from 25-35 years old. Thanks!