Learn about the complex structure of feathers and the different ways they’re used by birds.

Brood parasitism is a strange and fascinating breeding strategy seen in several hundred bird species.

Learn about the amazing birds in the family Picidae. Their special adaptations make them excellent at excavating wood.

When it comes to sleep, birds do some weird things that are very different from what you and I do.

The worlds' bird populations face many threats. Here I discuss the five biggest threats to vulnerable birds, as identified by BirdLife International.

The remarkable behavioral and anatomical features of hummingbirds are the same things that make them so endearing to us.

Sight is the primary sense most birds use as they go about their daily business. Their color perception and visual acuity are far better than yours.

Even when we can’t see birds, we can usually hear them. This article explores the structure and functions of the vocal sounds of birds.

Migration is one of the most amazing things about birds—their seemingly miraculous feats of orientation and endurance on long-distance, annual flights.

A look at the prehistoric proliferation of birds and their modern-day species diversity. How is this diversity distributed around the world and why is it important?