I finally got a chance to talk to my neighbor about these (it's his deck) he's known about them for quite some time and tells me there are actually 6 of them under his deck, two adults and 4 pups. He says that the pups will actually come right up to his sliding glass window on the deck and sit there looking into the house. It's kind of a neat thing to see. It always puts a smile on my face to be able to see wildlife in my own backyard.