Glad to hear you have some help. I'm rooting for the little troublemaker [emoji846] keep us posted
Sorry, but been gone from tortoiseforum land for the past two days...One cold night can cause a respiratory infection. One below freezing night can kill them.
It is not likely that it was 30 degrees at the bottom of a 11-12 foot long burrow. Ground temps are usually significantly warmer than surface temps in winter, and cooler in summer. That is why the wild desert tortoises burrow.
The U.S. Geological Survey has numbers for ground temps in all areas of the US. Our friend @Markw84 probably has a link handy that could tell you what ground temps in your area are. In my area we are 79-81 in summer and about 50 all winter. And this would only be about 1 meter deep. Even more stable farther down deeper. Mark might have other ideas for getting the tortoise out of there too.
Thank you. I did not know that about the gastroenteritis. That certainly makes it even more urgent.Sorry, but been gone from tortoiseforum land for the past two days...
@Kamisaki2008
Yes, the ground temperature at that depth in your area should be keeping the burrow right around 50°-55° So not as cold as you thought, but still cold enough to kill a sulcata if they cannot warm up in a few days.
I have found sulcatas are estremely resistant to disease and respiratory type infections. What does normally kill them if left outside is severe enteritis. Without heat to sustain any metabolic function - anything in their gut will actually start to rot and start inflaming the intestinal tract leading to infection. That is why so many feel sulcatas are "FINE" with cold overnight temps. It seems to work a majority of the time BUT that is IF the sulcata can heat up to close to 80° the next day or so to stimulate some metabolic function. Without that - it is inviting disaster! Even 2-3 days like you have going can be survivable, but I would get him out ASAP as you are on the edge.
The only way I have seen that reliably works, especially with bigger sulcatas, is to dig down BEHIND where the tortoise is with a new hole aimed at reaching the burrow just behind the sulcata. From that hole, you can usually enlarge that small section of the burrow towards your tortoise and get him out.
Keep us posted.