Kara Snow, board member of the Minnesota Ornithologists’ Union and employee of ... groups and policymakers and pretty much anyone who ever thinks about what a bird species is,” Reddy said. Snow said ...

Many factors affect breeding and migration, so birds must be extremely adaptable and flexible to shifts in global climate ...

While not all birds do it in the same manner, most birds, to some degree or another, do in fact "go to bed" every night.