Looks like the neighbor's are having some plumbing work done, with the need to dig up the water and/or sewer lines in the front yard. I was too embarrassed to stand in our front yard to snap photos of the machine at work, so I snapped while looking out the window. But I am not too embarrassed to post it here!
The hubby advised me to get used to this; we will be getting the same work done soon. Poor Angel and Chuck; they both hit their hidey holes when this 'CAT' monster started making noise; no doubt if it's happening in our yard, they will tuck themselves somewhere so we cannot find them!