Murmuration

Murmuration is the phenomenon of hundreds, sometimes thousands, of starlings flying in sweeping, intricately coordinated patterns through the sky. 

First, watch the video about the flight of the starlings, which is actually the short version of a film by Jan Van Ijken titled "The Art Of Flying". Go to full screen and ensure the sound is turned up, as you will be able to hear the rush of the birds' wings and shrill chirp of the the starlings as they fly overhead. Stunning!!

After you watch the video the first time, watch it again but this time, start the second video, the official music video for Burial's "Forgive".
Then start the first video "The Art Of Flying" at full screen again, but ensure the sound is turned down so you get the Burial soundtrack playing, so to speak. Another eerie but beautiful experience.  

Someone already posted something similar on YouTube, using the Burial music for a video of murmuration, but the quality of the filming is no where near that of this version I've suggested.