Flying objects!

Our next door neighbours had a birthday party for one of their children yesterday and the balloons are still wafting about by their gate.  What amazed me were the gnats (or whatever they were!) that were flying about. You can just see some of them hovering to the right of the balloons if you look carefully.  It could have been a summer evening at about 8:00pm instead of a winter afternoon at about 3:30pm!