Here is a look at five bird species that build some of the world’s most unusual nests, ranging from clay ovens to woven ...

A peculiar fossil has helped scientists discover an unusual bird that lived among the dinosaurs 120 million years ago, and the find is changing the way researchers think about avian evolution. The ...

Within a short amount of time, there were more than 200 reported sightings. 'Unusual' bird sighting draws viral attention to ...

When researchers found a hummingbird with glittering gold feathers, they initially thought a new species had been discovered, but what they actually found was far more unusual. The bird — found in ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A peculiar fossil ...

Birds flock to their feeder in the birding exhibit. Numerous species of bird call the Natural History Museum home, including the house finch, the lesser goldfinch and the mourning dove. (Emma ...

If you’d like to see some new-to-you birds in Michigan this fall, listen for the sound of one of our most common birds: The Black-capped Chickadee. The chickadee’s namesake “chickadee-dee-dee” call is ...

The Galápagos Islands are renowned for their unique ecology and rich biodiversity. Isolated and remote, these islands are home to some of the most unique and rare species on Earth. However, hidden ...