Buffy and Sonia of The Big Norwich Bat Project emailed the results of the survey carried out in my garden on Sunday night. Very comprehensive, it gives details of the night's bat calls including timings and various other bits of information.
We had 8 bat passes consisting of 5 Common Pipistrelle, 1 unidentified Pipistrelle and 2 Noctule. Not sure for the reduction on last years total of 40. It was rather cold, the temperature dropping as low as 8 degrees Centigrade.
All in all a very interesting exercise and well worth surporting.