Nonstop Flight: How The Frigatebird Can Soar For Weeks Without Stopping : The Two-Way : NPR

Scientists have been attaching transmitters on the huge seagoing birds and are astonished by their ability to stay aloft.

Gliding flight - Wikipedia

To Avoid Bird Strikes, Just Tell The Birds To Move : NPR

Frigatebirds sleep in mid-flight, Science

Frigate birds spend months without landing

First evidence of a 200-day non-stop flight in a bird

To Avoid Bird Strikes, Just Tell The Birds To Move : NPR

Frigatebird Facts, Birds of the Galapagos

First evidence of a 200-day non-stop flight in a bird

Snowbirds won't take flight as investigators look into cause of crash

These Birds Stay Airborne Without Landing for Two Months

How cool! Study finds some birds can even sleep while flying

ELI5: How do birds that dive from the air into the water to catch fish manage to get back up into the air? Wouldn't the water soaking their feathers weigh them down?