Original Image: Captured Over Racton, West Sussex, 2008
Classic saucer-type UFO photographed over Racton, West Sussex, UK - 2008.
Above is an enlargement of the main, larger object. (it's definitely not a bug as you can see)
The very small object above the larger is simply a plane... see above enlargement.
Annoyingly, we don't have any further details about the circumstances behind the picture in question, except that it was taken one afternoon in 2008 at Racton, West Sussex, UK.
It is also known that 'nothing unusual was seen at the time of taking this random shot, (just one of many taken that afternoon), while 'skyfishing', a technique that involves photographing an area of the sky for a length of time in the hope of catching something anomolous -and reviewing the images later on a PC.
Thanks to Google Images for sharing.