But under the Pacific Northwest's lead-gray skies, a feral flock of colorful parakeets flies around Seward Park, a 300-acre island of green in southeast Seattle where they have taken up residence ...

Yet bird-watching hones a sharp eye for color differentiation, so Ridgway had an edge — as well as a drive for perfection enabled by 19th-century synthetic dye advancements.

While humans have three color cones in the retina sensitive to red, green and blue light, birds have a fourth color cone that can detect ultraviolet light. A Princeton-led research team trained wild ...

Parrotlet and parakeets are two adorable little birds of the parrot family are both kept as family pets. They are the two ...

This is the year of mocha mousse, according to Pantone. The company's annual color craze originates in part from the work of a 19th-century ornithologist who described the dizzying array of bird ...

Spectacular bird's-eye view? Hummingbirds see diverse colors humans can only imagine Team trains wild hummingbirds to discriminate UV color combinations ...

Why bird eggs come in so many colors is still something of a mystery, but new research identifies a reason for a common trend among birds, especially those up north: their dark-colored eggs. Previous ...