Swifts only land to rear young. There must be lots of other such birds.
Our best candidate for a bird that sleeps while flying is the Laysan Albatross, which dwells above northern oceans such as the Bering Sea.
An Albatross apparently dozes while cruisig at 25 mph.
A Swift is one example.
Owl, Hawk, Kiwi, Mocking bird
your mum can fly when it sleeps
A Owl sleeps in the daytime!
From a Bird's Eye View - 1970 Nobody Sleeps on a Honeymoon 1-6 was released on: USA: 3 May 1971
A nocturnal bird, such as an owl, that is primarily active at night.
birds,bats, insects, animals with wings
Air+Lizard= Bird
They sleep on a perch or in a tree cavity. My macaw has a bird hut (tent) that he sleeps in every night.
The common swift of Europe and Asia can remain in the air up to three years without having to make any stops. It eats, sleeps and mates while flying, and lands only to lay eggs, rest its wings, or because it is bored.
An Experiment on a Bird in the Air Pump was created in 1768.
15 psi
a bat is nocturnal (it stays awake during the night and it sleeps during the day) and a brd isn't nocturnal.
air+egg=bird
Egg + air = bird
the air-y bird