Bird nesting happens in spring. That's common knowledge, right? Actually, it's not always the case. Even though we associate nesting birds with springtime, some birds do nest and lay eggs in other ...

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

Zoo staffers don’t know whether the bright green eggs are viable and will ultimately hatch into chicks. However, the eggs ...

A southern cassowary at the Adelaide Zoo has laid eggs there for the first time in 34 years, after a carefully managed ...

A new study has uncovered a fundamental link between brain size and offspring size, helping to solve a long-standing evolutionary puzzle: Why do birds lay such disproportionately large eggs?

America’s national bird added a new chapter to its closely watched nesting season this week after a well-known bald eagle pair laid a second egg at their California nest — a moment captured live as ...

Egg-collecting enthusiasts in the late 1880s knew the hobby was crucial for understanding the natural world, but likely never imagined that their research would help scientists more than 100 years ...