A large flock of birds takes off from a pond at the Lower Klamath National Wildlife Refuge along the Oregon border in ...

They migrate in the day when nectar sources, like flowers, are in bloom. Before they start their migration, the birds gain about 25-40% of their weight to make the long trek. The tiny but mighty birds ...

As birds fly over cities, light pollution can blot out stars and disrupt natural navigation. They can wind up trapped and ...