tomaugust 的最愛

Recorded with Echo meter touch 2.

There were several of them (2 initially, with at least 3 more joining later) flying over water for at least 20 minutes. I think they were flying too low to be Common Noctule.

I have uploaded the raw sound file and I have many more recordings I can upload if necessary.

I have also added a photo although I'm pretty sure it's useless for ID.