I suspect strongly the Armadillo that tore up our lawn last fall is back. We also found a big hole (watermellon size) when we redid the beds that parallel the house, with plants, etc (and lots of mulch.) I dragged the CATCH-A-KRITTER-CAGE-OF-HUMANE-TREATMENT out of storage, loaded it with a nice new can of stinky catfood, and placed in the bed next to the gas meter, where the hole was excavated.
And LO! Within a few nights, the trap was tripped, but empty!
I reset it just now. Time will tell, and if time does, there will be photos posted here, but I wouldn't hold your breath. The trap has never worked for us.