Hi, anyone have any thoughts on this bat which passed over my house (Test Valley, Hampshire) just before midnight last night (30th March, 2017), during a remote recording session. (Time expansion recording)
Fairly slow repetition rate (~6 per second)
Peak frequency 35-36KHz,
signal length ~6ms
My initial thoughts on anything in the mid 30's locally would be Barbastelle (previously unheard of in my garden / immediate area, but recorded once a mile or so away, and many records within 10 miles), but on closer analysis the signal is pretty much constant frequency, I would guess a Pipistrelle flying in open space.
The Peak Frequency would point to something extremely rare.
(Bat Explorer software is claiming Savi's Pipistrelle).
One disclaimer would be that I have no idea which direction or distance the bat was in relation to the detector. Therefore weak, and deflected signals can cause confusion, but this one looks pretty sharp especially the power signal, albeit with a quite faint sonogram.
Any idea would be welcome, including any experts who I could forward the wav file to for a closer look.
Fairly slow repetition rate (~6 per second)
Peak frequency 35-36KHz,
signal length ~6ms
My initial thoughts on anything in the mid 30's locally would be Barbastelle (previously unheard of in my garden / immediate area, but recorded once a mile or so away, and many records within 10 miles), but on closer analysis the signal is pretty much constant frequency, I would guess a Pipistrelle flying in open space.
The Peak Frequency would point to something extremely rare.
(Bat Explorer software is claiming Savi's Pipistrelle).
One disclaimer would be that I have no idea which direction or distance the bat was in relation to the detector. Therefore weak, and deflected signals can cause confusion, but this one looks pretty sharp especially the power signal, albeit with a quite faint sonogram.
Any idea would be welcome, including any experts who I could forward the wav file to for a closer look.