Buzzing over my breakfast

I couldn't imagine what I was hearing. It sounded like an army of weed-wackers. I looked out the window and then saw one, and then several, flying overhead. It was an invasion of ultralight airplanes on an early Saturday outing, flying along the Danube. The view of the castle must be terrific.

You will have to use your imagination as my camera couldn't discern them in the blue.