Flying insect or bat?

Hello, there’s a strange sound that I can hear most nights in my garden, a short and sharp high pitched sound that flies over pretty quickly. It’s in short bursts and repeats every minute or so. I’m pretty sure it’s a bat since the sound goes over quickly, but I don’t know what these sound like. I’ve attached two recordings, one with an annoying helicopter which is slowed down so you can hear it better. Any ideas? 
Thanks 

  • The attachments aren’t working, I’ll try again tomorrow

  • I always understood that bat voices were beyond the hearing range of humans but that may differ with some people

    Pete

    Birding is for everyone no matter how good or bad we are at it,enjoy it while you can

  • In reply to Seaman:

    The file seems to have gone a little weird so I’ll record it again tonight, then try again. Maybe it’s not a bat then, probably something really simple that confusing me. Thanks
  • In reply to Seaman:

    Wendy S said:
    I always understood that bat voices were beyond the hearing range of humans but that may differ with some people

    Likewise, that's why there are bat detectors available to listen in, but I'm happy to be corrected.

    I'll look forward to your recordings Ellis when you manage to get them uploaded.

    Mike

    Flickr Peak Rambler

  • In reply to ellis187:

    Simple and confused hmmm sounds a bit like poor old me today Ellis lol

    Pete

    Birding is for everyone no matter how good or bad we are at it,enjoy it while you can

  • Bat.m4a

    It worked this time, although it’s very hard to hear. It’s a sharp short high pitched ‘zzz’ sound, I’m glad it’s not my ears going crazy. It should be slowed down. Thanks, if this doesn’t work I’ll try again tomorrow 

  • Ellis I've turned volume up to full but all I can hear is the background noise.

    Pete

    Birding is for everyone no matter how good or bad we are at it,enjoy it while you can

  • Bats.m4a

    I finally got it properly. It came low over the garden, low enough for it to make a proper recordable sound. The noise happens throughout but it gets louder at the end. Thanks (please tell me this works finally) 

  • Hi Ellis, I just ran it with my echo meter and it's not picking up anything. That's not to say there isn't anything there, just that it's going to be tricky

    Cin J

  • In reply to Germain:

    Thanks for that, it saved me buying expensive equipment. I’m going to search more, hopefully I will find an answer. Thanks