Birds come in a wide variety of colors. Some feature relatively dull plumage, while others sport brightly colored feathers.

Most birds with bright yellow or red feathers — think goldfinches and cardinals — use pigments called carotenoids to make those colors. "The reason that a bird's egg's yolk is a bright yellow ...

“For a century, scientists puzzled over the mechanisms that enable parrots to produce red or yellow coloration, even as the genes that control melanin, carotenoid, and even structural coloration ...

While the term "parakeet" encompasses over a hundred species of small parrots, for most people ... Common parakeets can be found in shades of green and yellow with black scalloped markings ...

Parrots are so adept at mimicking people ... Common parakeets, also known as budgerigars or budgies, are a small, neon green and yellow species of Australian parrot often sold as pets.

But how do parrots get their vivid red, yellow and green feathers? This query has long perplexed scientists, but, now, they say they’re one step closer to solving the mystery. A simple chemical ...

The rediscovery in 1999 of a small cluster of yellow-eared parrots, striking green birds with yellow markings in western Colombia, led to the creation of a reserve. The population grew to thousands.

Some birds like the Yellow-naped amazons (Amazona auropalliata) that dart across trees from Mexico to Central America also appear to have regional dialects. The findings are detailed in a study ...

It turns out kākāpō were originally moss green, and the olive plumage appeared only some 1.93 million years ago, just as two large predatory birds emerged: Haast’s eagle and Eyles’ harrier.