Wouldn't it be cool if birds left visible trails behind them, like jets tracing the sky with smoke? That's exactly the effect of Rhode Island School of Design professor Dennis Hlynsky achieves in his mesmerizing videos posted today at This Is Colossal.
The concept is simple: set up a stationary camera and shoot some birds flying around. Then, using some basic After Effects tools, animate the motion path so that each birds physical "echo" remains visible. It's a perfect synergy of nature and abstract art. See more examples on Hlynsky's Vimeo page.