I think my top sighting was dong some bat watching at a Church near Milton Keynes - we were surrounded by pips whizzing by when I tuned to face the moon at just the right moment and a horseshoe bat glided, wings fully stretched, vertically about 2m in front of my face. It seemed to glide so slowly for that split second you could really make out it's shape. Unfortunately it wasn't lined up for the perfect 'batman' pose in front of the moon, but was close enough for a great silhouette!
