I have a slight obsession with this giant murder of crow that flock in my backyard. I posted a few crappy videos on my fb page which prompted one of my friends to send me a link to Dennis Hlynsky's work. I was totally blown away. His take on studying and recording the patterns of nature is amazing.
In the first video Dennis describes his process. Below are a few of my favorite videos he has created. You can see a larger selection of his work on his vimeo page here.