This seems straight out of a Terry Gilliam film. The guy flying with the two really big birds is Scott Mason, who uses them to detect thermal currents to fly his paraglider through the skies of Nepal. It's called parahawking.

We are heading to a ridge top 2,000 feet above Pokhara. In the backseat there is a paragliding wing, a leather glove and a pouch of raw buffalo meat. Everything Mason needs to introduce me to Nepal's latest adventure sport: parahawking.

Having been out in Nepal flying with these birds on a daily basis for the last eight years, Adam and Graham were keen to push this interaction further. So after a few beers and plenty of enthusiastic discussion, the idea of Parahawking was born. Parahawking is simply a fusion between Paragliding and Falconry. The idea being that the birds are trained to "hunt" the thermals, which allow the pilots to stay aloft.