Encountered this fellow during bushcare today. He was sitting right on top of the bridal veil roots we were pulling, looking suspiciously like a rock.
We probably shouldn’t have handled him (I hope turtles don’t get dizzy from being turned upside down). We put him back down and hid him under some other groundcover as a local Kookaburra was loitering.
They can’t breath properly when turned upside down. Try to keep them upright if you encounter them again. If you have a box or reusable shopping bag if they are obviously injured and need to be transported somewhere for medical attention. If the box is big enough they should be able to right themselves back up.
When doing turtle recoveries we had a Rubbermaid tote with a lid which had holes cut in it.