JH Survey 2 20160701 Tascam wav files

Panshanger Barbastelle Survey 21 July 201621:25-23:00Justin A T HallsTascam DR05 96ksps 16bitMEMS SPM0408UD5Luton 9:50pm 12C 77% 1008hPa 6.7m/s WSW light cloud51.798956 -0.145018Pleasant, clear evening with base camp at the junction of two large and one smaller ride through the coniferous part of the Panshanger woods. Quite breezy in openareas at times. Mainly Common Pips with one or two Sopranos and a nyctalus,probably Leislers. No confirmed Barbstelles at this location although we thoughtwe had a pair of Barbies fly past at 22:21, observed flying about waist height from the northern ride and departing down the southern ride.On analysis looks like BLE's, sweeping 50-25kHz with some second harmonic. Areaat the junction quite open so not likely to be Barbastelle clutter type calls.The Tascam was located about a 100yards down the ride to the south and did not pick upthe 35kHz bat at all.