Plantpot Parabolic, a DIY reflector for recording birdsong on a smartphone | The Kid Should See This https://thekidshouldseethis.com/post/plantpot-parabolic-a-diy-reflector-for-recording-birdsong
North Wales-based nature enthusiast and photographer Ben Porter wanted to record bird and wildlife sounds, including the ‚tee-cher, tee-cher‘ song of male
It’s by no means perfect, but I have been really impressed