Birds that sleep in flight. Certain bird species have an extraordinary ability to sleep while flying, allowing them to undertake long migrations and traverse vast distances without pausing
Frigatebird
Frigate birds are about the size of a chicken and have extremely long, slender wings, the span of which may reach to about 2.3 metres (nearly 8 feet).
Great snipe
The great snipe (Gallinago media) is a small stocky wader in the genus Gallinago. This bird's breeding habitat is marshes and wet meadows with short
Northern wheatearFound across northern Eurasia, this species also nests in Alaska and eastern Canada. These North American breeders undertake epic migrations to reach their
SandpiperScolopacidae is a large family of shorebirds, or waders, which mainly includes many species known as sandpipers, but also others such as woodcocks