Does a cuckoo know it's a cuckoo? The answer is more difficult than you might think, explains Richard Pallardy ...

Birds exhibit a wide variety of fascinating nesting and offspring-rearing behaviors throughout their lifecycle. Against the odds, they protect and guide their young from hatching to leaving the nest ...

The eagles at the U.S. Steel nest in West Mifflin are on egg watch — as are the hundreds of people who watch the livestream. Stella and her mate Irvin continue to sit on standby as their eaglets are ...

Georgia’s bird nesting season is underway. Here’s a short primer: Q: How long do birds in Georgia incubate eggs before they hatch? A: It depends on the species — and their sizes. Typically, large ...

When we think of glaciers, polar bears and penguins often come to mind. Finches are more associated with backyards than icy ledges, but one species found a way to survive one of Earth’s most extreme ...

A eucalyptus tree in a Marina del Rey park that was home to dozens of soon-to-hatch double-crested cormorant eggs became unstable after strong winds, prompting a rescue mission to remove the eggs ...