Birds boast some of the most vibrant colors among terrestrial animals. The tropics are often renowned for the brightest birds, but U.S. birds also display a wide array of striking hues. But just how ...

You’re at the park wearing a heavy winter coat, a beanie, gloves, a scarf, and warm boots—and you’re still numb and shivering from the cold. Then you notice a robin hopping from branch to branch.

Did you know that not all birds can sing? Some birds are natural vocal learners, while others merely make calls rather than ...

The thick conifers (left) in this forest may provide Blue Jays with shelter, while the deciduous trees (foreground) may offer woodpecker holes for chickadees and other small birds. BILL DANIELSON / ...

How do birds fly in a coordinated and seemingly effortless fashion? Part of the answer lies in precise, and previously unknown, aerodynamic interactions, reports a team of mathematicians. Its ...

A few weeks ago when I was out cycling with some friends, we saw a few birds who looked like they were sleeping. Someone asked me what they were doing, and I said they were resting or sleeping but I'd ...

When the wind howls and the temperature plummets, it's easy to look out a window as birds huddle in a bush or on a wire and wonder if they need some help to make it through the winter. While many of ...

Birds boast some of the most vibrant colors among terrestrial animals. Our pretty avian friends have inspired our Democrat and Chronicle photographers for years and captured the imaginations of many ...