It would be very interesting to get a hearing test done. One which provides you with a chart of frequency against intensity perceivable. I’d check that they are equipped to go over 20kHz first.
In the case of bats for me I think I feel the pulses of bats because it’s quite powerful, more than hear it. It’s probably undertone resonance or something.
I haven’t heard any for a while and my hearing is deteriorating but bat numbers collapsed and I haven’t seen them either.
“I hear bats” - Astounding! 8]
It would be very interesting to get a hearing test done. One which provides you with a chart of frequency against intensity perceivable. I’d check that they are equipped to go over 20kHz first.
In the case of bats for me I think I feel the pulses of bats because it’s quite powerful, more than hear it. It’s probably undertone resonance or something.
I haven’t heard any for a while and my hearing is deteriorating but bat numbers collapsed and I haven’t seen them either.