This is simply spectacular. I've never seen anything quite like it -- a close-up view of birds soaring through the sky, in incredible detail. As I was watching this YouTube clip from the UK show called Earthflight, I couldn't help but wonder how they managed to film this footage. According to their website...

To create its bird’s-eye view of the world, Earthflight uses a host of extraordinary filming techniques including filming “imprinted” flocks from microlites, wild flocks filmed from model gliders and silent drones, full-sized helicopter with stabilised mounts and cameras on the backs of trained birds. Slow-motion techniques also reveal extraordinary detail such as swallows plucking feathers from the air.

That's right -- they strap cameras onto the backs of specially-trained birds to record the other birds around them! Check-out the results in this teaser clip from the BBC. I can't wait until this program comes to BBC America!