Nonstop Flight: How The Frigatebird Can Soar For Weeks Without Stopping : The Two-Way : NPR
By A Mystery Man Writer
Scientists have been attaching transmitters on the huge seagoing birds and are astonished by their ability to stay aloft.
Frigate birds fly nonstop for months
Gliding flight - Wikipedia
News & Features All About Birds
Common Swift: This Bird Can Remain Airborne For 10 Months Straight
How cool! Study finds some birds can even sleep while flying
News & Features All About Birds
Frigatebirds sleep in mid-flight, Science
Snowbirds parachute problem cancels upcoming performances
Caribbean BirdWatch – BirdsCaribbean
Snoflo
How Birds Sleep Mid-Flight Without Colliding or Falling Out of the Sky
