When it comes to bird eggs, most people imagine the standard brown or white varieties. However, nature has a surprise in ...

Clutch size: 3 to 4 eggs. The spotless, bright blue-green eggs in the American robin’s mud-lined nest are a sure sign that spring has arrived in North America­—and sometimes they appear ...

Easter Egg. The First Colored Eggs Appeared Long Before Easter The dinosaur ancestors of birds laid blue, brown, and speckled eggs as far back as 150 million years ago.

A once-extinct bird has laid eggs in the wild for the first time in nearly 40 years. After returning to the wild in 2024, the endangered Sihek bird is now laying wild eggs in its new Hawaii home.

The first wild eggs of an endangered bird have been laid for the first time in almost four decades, and the Cincinnati Zoo & Botanical Garden helped to play a role!