Well, I found out 2 things early this morning.
1. I caught the little devil in the act.
Its a teenage toad. It pushes the semps out of the ground, over to the rocks, and buries itself under the loose semps so it can jump out in a hurry. I'd seen it in that garden before but it was just cruising around.
2. I think I have actually turned into that "crazy old lady" that my husband keeps calling me!
At 3:00 this morning I put the toad in a bucket, packed it in my Jeep and went on a relocation mission! I went 2 miles down the road (out in the country) and let it go. Now I'm just hoping that they don't have real good homing instincts - maybe I should've moved it even further away!
And I'm also hoping there was only one toad doing all the damage.....
P.S. I had put up some hardware cloth cages around some of the semps last night too.