The Purple Grenadier is a colorful Eastern African bird with bright red eye spots and deep violet-blue feathers. This beautiful hummingbird, found in Central and South American rainforests, boasts ...

Birds-of-paradise are a stunning example of naturally occurring bright colors, and we’re not talking about the flowers.

The avian world is a treasure trove of fascinating and often bizarre mating rituals. Explore the different types of bird ...

Birds living in cities are usually more colorful and less brown. These colors help them survive better in urban environments.

While there is an astounding variety of physical differences in wildlife that humans can easily observe, new research from ...

Long-eared Owls have fluorescent feathers that glow under UV light. These hidden pigments vary by age, sex, and size.

The white-necked jacobin (Florisuga mellivora) is a jewel-toned hummingbird found in the neotropical lowlands of South ...