Raul Silva

Guillemot Egg: Its Shape, Color, and Survival

What Is the Function of a Peacock’s Tail?

How Many California Condors Are Left?

Do Birds Blink? How Their Three Eyelids Work

What Is a Laughing Jackass? The Kookaburra Explained

Bird Gliding: How Birds Fly Without Flapping

What You Need to Know About Bird Flu in Japan

Why Are Kingfisher Feathers Blue and Are They Legal to Own?

Birds in Nature: Their Habitats, Behavior, and Importance

The Drake Penis: An Explosive Corkscrew Anatomy

Ichthyornis Dispar: A Prehistoric Bird With Teeth

Bird Smoking Cigarette: Surprising Urban Behavior

How Did Chickens Get to Hawaii? Examining Their Island Origins

Bird Wing Anatomy: A Detailed Look at Feathers and Flight