I was too upset to take pictures at the time but I can tell you exactly what it looked like. It 8-10 inches round about one foot deep and the creature was so cleaver that he dug around the back end of the coup. Ours is built onto the barn. So if any of you feel the wall of another building is save think again. They are so cleaver and determined to get at our birds.
So please do what my husband has done. He dug way below the pen, inserted raging wire, pulled the sharp wire out words, so the animals would rip their paws if they start digging. He buried throat. Then on the inside he put barn tin, again down deep all along the barn wall.
On top of all tat we started leaving our Mucovy drake out at all times and nothing has been around.
Hope this helps.