Birds have fascinated humans for centuries, with their ability to take to the skies effortlessly. But when it comes to sheer size and wingspan, some birds dominate the skies in ways that seem almost ...

The North Island brown kiwi is a flightless, nocturnal bird that lays the biggest egg relative to its body size. Marilyn Foehrenbach Q: I’ve read that ostriches lay the biggest eggs. But what land ...

A 12-million-year-old fossil of a prehistoric "terror bird" discovered in South America might represent the largest known member of its kind found to date, a study ...

CHICAGO (CBS) -- For decades his job was to size up dead birds. Now, CBS 2's Vince Gerasole reports, all those numbers from a Chicago scientist add up to a big discovery. For 40 years in a Field ...