What bird can fly for 7 years?

No bird can fly continuously for seven years without landing, as all birds need to rest, eat, and sleep, but there are birds that can stay aloft for extremely long periods, and the claim of flying for seven years is an exaggeration of remarkable abilities. The bird most often associated with long flights is the Common Swift, Apus apus, which can stay airborne for up to 10 months at a time without landing, eating, sleeping, and even mating in flight, and young swifts may stay aloft for 2 to 3 years after fledging before first landing to breed. Another bird with incredible endurance is the Frigatebird, especially Great Frigatebirds, which can fly for weeks to months over oceans without landing, sleeping briefly while flying using unihemispheric sleep where half the brain sleeps. The Albatross can also fly for long periods over oceans, gliding for days. The Alpine Swift can fly for 200 days nonstop. No bird flies for seven years continuously, but swifts spend most of their lives in flight, with some individuals spending over 99 percent of their time airborne. The myth of seven years may come from confusion with lifespan or migration cycles. The closest to long flight is the Common Swift which can fly for 10 months nonstop, which is the longest recorded continuous flight for a bird.