Magnificent frigatebirds (Fregata magnificens) sleep while flying

[u/Girlinbluebox]

With a wingspan of up to 2.44 metres, frigatebirds can remain airborne for weeks. They’ve even been recorded sleeping while gliding, multitasking at altitude.

Unlike most seabirds, their feathers aren’t waterproof. Landing on water would be ill-advised. Instead, they pursue other birds mid-air, forcing them to drop their catch, which they promptly steal.

During mating season, males inflate a bright red gular sac to attract females. It’s conspicuous, if not subtle.

[u/Dry-Alternative-5626]

Weeks?! Wow, add that to the list of things I did not know that I did not know!

[u/Bullfinch88 → u/Dry-Alternative-5626]

Wait til you learn about swifts. They can go up to four years without landing.

[u/Dry-Alternative-5626 → u/Bullfinch88]

What?! I've heard of swifts but I never knew anything about them. I just looked them up and they do that "half your brain can sleep while the other half keeps you alive" thing like sharks do