Fast and furious: The real lives of swallows
These avian acrobats are teaching scientists how to build better drones
![Doug Warrick with drone](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/01/drones_DougWarrick_2014.jpg?fit=860%2C460&ssl=1)
FANCY FLIERS Biophysicist Douglas Warrick tracks radiotagged barn swallows near an Oregon farm.
Bret Tobalske, University of Montana