Birds are warm-blooded vertebrates (vertebrates have backbones) and are the only animals with feathers. Although all birds have wings, a few species can't fly.

New research estimates there are between 50 billion and 430 billion birds on Earth.

50 Birds, 50 States Barry the bald eagle soars from coast to coast to meet state birds and learn about their homes. Each episode is an animated rap music video focusing on the big cities, …

The team expects to find more birds of paradise species in New Guinea's biodiverse forests, which are so isolated and remote that human development has not encroached greatly on the …

Owls, ospreys, and more!Sea eagles have a pretty amazing way of fighting off intruders! Watch them whirl in this video.

The ostrich is the tallest and the heaviest of all birds. While the huge ostrich is a bird, it does not fly. Instead it runs. One stride can cover up to 16 feet (4.9 meters)—about the length of a mid …

How do birds remain immune? Another enduring mystery is how the birds protect themselves from the deadly toxin they carry.

Using more than half a million records collected from five migration sites in the Northeast and Great Lakes regions, scientists have revealed that birds of different species form lasting ...

Courtship for these monogamous birds also takes place in flight. Their mating ritual begins with a “fish flight,” which is when a male Arctic tern swoops over a migratory camp carrying a fish ...

Snakes, cats, black bears, raccoons, and other birds such as house sparrows hunt adult and baby eastern bluebirds. Eastern chipmunks and flying squirrels like to eat eastern bluebird eggs.