JH Survey 2 20160701 Tascam wav files

<br>Panshanger Barbastelle Survey 2<br>1 July 2016<br>21:25-23:00<br>Justin A T Halls<br>Tascam DR05 96ksps 16bit<br>MEMS SPM0408UD5<br>Luton 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 <br>ride through the coniferous part of the Panshanger woods. Quite breezy in open<br>areas at times. Mainly Common Pips with one or two Sopranos and a nyctalus,<br>probably Leislers. No confirmed Barbstelles at this location although we thought<br>we had a pair of Barbies fly past at 22:21, observed flying about waist height from the <br>northern ride and departing down the southern ride.<br>On analysis looks like BLE's, sweeping 50-25kHz with some second harmonic. Area<br>at the junction quite open so not likely to be Barbastelle clutter type calls.<br>The Tascam was located about a 100yards down the ride to the south and did not pick up<br>the 35kHz bat at all.

潘尚格宽耳蝠（Barbastelle）调查2
2016年7月1日
21:25-23:00
调查负责人：Justin A T Halls
录音设备：Tascam DR05型（96千样本/秒采样率、16位量化深度）
麦克风：MEMS SPM0408UD5型
现场环境与观测坐标：卢顿当地晚9:50，气温12℃，相对湿度77%，大气压强1008百帕，风速6.7米/秒，风向西西南（WSW），晴好伴薄云；观测坐标51.798956, -0.145018
本次调查的大本营设于两片大型林区与一片小型林区的交汇处，骑行穿越潘尚格林场的针叶林区域。开阔区域间或有较强阵风。本次调查主要记录到普通伏翼蝠（Common Pipistrelle），另有1-2只高音伏翼蝠（Soprano Pipistrelle）以及一只棕蝠属（Nyctalus）物种，大概率为莱氏棕蝠（Leisler's Bat）。本次点位未确认观测到宽耳蝠，不过我们曾在22:21疑似观测到一对宽耳蝠飞过：从北侧林道约腰高位置掠过，随后沿南侧林道飞离。
经声学分析，疑似为宽耳蝠叫声（BLE）：扫频范围50-25kHz，伴随部分二次谐波。交汇处区域较为开阔，因此不太符合宽耳蝠典型的杂波型叫声特征。
本次部署的Tascam设备设于南侧林道下游约100码处，未能捕捉到这只35kHz的蝙蝠叫声。