A few days ago I saw this crane fly 'bouncing' along a path in the Wilderness. It had rained heavily the previous day and the path was soft and muddy. The fly would repeatedly touch down in the mud, immediately fly up a few centimetres and then drop down, repeating this over and over again. I presume it was laying eggs in the mud. Every now and again it would stop and rest on the path a few seconds, before starting off 'bouncing' again.
Photo taken in the Wilderness, Whiteknights Park, Reading University grounds, Reading, UK, on 2011-08-19.