The various species of sparrows, for example, can be tough to distinguish from each other. But the first time I saw a Swallow-tailed Kite, I knew I’d just seen a Swallow-tailed Kite.

At 5.5 inches from head to tail, the hummingbird-size fossil is the first of its kind to be uncovered in South America, and one of the oldest known bird fossils from Gondwana, a supercontinent ...

The fan of feathers at the base of its tail would have resembled those typically observed in present-day birds such as pigeons or sparrows. This aerodynamic shape would have helped to generate ...

Scientists have uncovered the fossil of a bird that lived 120 million years ago and it definitely had flair, including unusually long tail feathers. While the feathers probably didn’t help the ...

A 120-million-year-old bird sported a long tail and a second, unexpected tail frond, paleontologists suggest. The discovery points to a complicated evolutionary path for the tails we see in birds ...

Mirasaura grauvogeli had a featherlike crest and a tail like a monkey. “It's been a long time since I've been so blown away ...

Birds use their wings and specialized tail to maneuver through the air while flying. It turns out that the purpose of a bird's tail may have also aided in their diversification by allowing them to ...