I wish that there was a pattern, there isn't. I honestly believe that it's more than 1 group of thieving buttnuggets. It's pretty open at that place, so camera placement will be a task in itself.
Friends had the same problem, but the cameras were stolen too. Fixed them by placing one camera only moderately well hidden, then aiming another at that spot to get good pics of them as they steal the first one.
Sent from my iPhone using Tapatalk