In comment #60 yarddog said: "For a few years, a C130 would show up around dusk and circle my house for an hour or so. I always guessed it was from Hurlburt. Probably actually circling a nearby church. The sound of the engines is fairly distinctive although every now and then I think I hear one and it turns out to be some commercial aircraft.
I was thinking a few months ago, that I haven't seen one in over a year."
If something doesn't happen to cool down what appears to be an approaching nuclear-showdown between Iran and the Western powers, that C-130 and more U.S. military aircraft of the forceful type may become highly visible in the U.S. airspace all the time.
Interestingly, I just got through watching one and it is bright daylight. I was out in the yard and heard one approaching. I got my binoculars and sat in the yard watching for some time.
He was not making cirles, although I guess that is what he eventually did because the plane kept coming back from roughly the same spot and repeated the same maneuvers.
All it was doing was banking slightly left then slightly right, then eventually cirled left and disappeared. Maybe ten minutes later he would reappear and do the same thing.