On one of those very cold & clear early mornings during this January (2017), the pond at Underhill Wood was covered in a vast, single sheet of ice. While that is not that unusual, the sounds coming from the pond were bizarre - I had not experienced this before and haven't since.
I laid my phone on the ice sheet, pressed record and this clip is the result. There are 3 discernible sounds - a Robin in song, ice cracking & creaking, and resonant pings (pondsong).
My friend Graeme Miller worked his magic and 'cleaned' the recording - thank you!
In our email exchange Graeme wrote this - 'it just highlights how audaciously dynamic nature is'.