Ok, I need some help guys... So as some of you know I recently built an all metal aviary with welded wire roof and sheet metal perimeter buried 1 foot in the ground. But today I went out to check on the birds. And I found a predator attack. My grey female and one of my doves were dead with meat missing but still had head (so that excludes fisher and mink correct?) the predator also left a big poop right in front of my grey females body. It looks as though the predator Dug it's way under. There is a dug hole underneath the actual coop that leads to the aviary. It is about 7ft long. Any ideas on what did this and how to fix it)