Murmuration refers to the phenomenon that results when hundreds, sometimes thousands, of starlings fly in swooping, intricately coordinated patterns through the sky.
Maybe you've seen a murmuration video before. But this one is especially beautiful. It was shot earlier this month in Wales, at Cosmeston Lakes in the Vale of Glamorgan, and posted on Facebook by the BBC Cymru Wales.
Why do I love this short video so much?