There was a gathering of mammal watchers on Saturday in Savernake Forest for the annual PTES bat excursion led by Steve Laurence and the Wiltshire Bat Group.
Clare and I went, to find Mark Hows, Mike Richardson and Simon of Essex as well as Kenny and Kat from the North West and some faces I can't put names to (sorry) preventing ordinary citizens from getting on the trip.
The weather was very kind with bright sunshine (dimly visible through the leafery) but rather cold, which may have affected what bats we found. It was nice to start off with three Soprano Pipistrelles in boxes near the car park.
There were plenty of Brown Long-eared Bats in one box on the way round, and a few Natterer's Bats in another, but no sign of any Barbastelles anywhere. We tried listening to the Long-ears echo-locating from three feet with a Batbox IIID and could barely pick them up. No wonder the damn things are so difficult to find in the field.
Towards the end of the day we visited an extra ancient tree known as the totem pole due to the assortment of bat refuge modifications sprouting from its rotting trunk. This yielded another three Soprano Pips and a Common Pip that was lurking in a chainsaw-cut slot (a first use of such a refuge for Savernake apparently).
We then bomb-burst out into Marlborough for dinner and a pint before gathering at the disuseed railway tunnel where the evening's harp- and mist-netting was to take place.
Clare and I had our noses brushed by a Barn Owl on the way in, a bit of a "JC!" moment as its silent form whipped past us, and arrived to see a Brown Long-eared Bat sliding down the harp trap wires to be collected at the bottom.
It wsa very cold in the cutting and despite being well wrapped up we were soon curled up trying to stay warm. The bats probably were somewhere, too, because they weren't whizzing about in profusion or diving in squadrons into the nets. We had a trickle of Nats and Long-ears, then some excitement when a male Myotis came out of the net. Unfortunately its penis was very narrow which made it Whiskered Bat rather than Brandt's but its teeth were checked anyway.
Clare and I ran out of endurance at about 2230 and headed home.
John