The passenger pigeon was once the most numerous bird in the world, but in just half a century, it had gone extinct.

Once a male bird has successfully set up a home, he can begin attracting females. In most bird species ... “to sing like a ...

3- 5bn - the population of the passenger pigeon in the 1800s, now extinct, which is thought to be the most common wild bird in human history ... shaping the natural world. The domestic chicken ...

We've made a list of some of the most common garden birds. Why not get outside and see which ones you and your family can spot together? The woodpigeon is mostly grey with a white patch on its neck.

When Heather Renner and her colleagues began noticing thousands of common murres ... was one of the most visible and extreme examples of how climate anomalies in the warming world can throw ...

These colors distinguish them as some of the world's most dramatic and attractive birds. Males often sport vibrant feathered ruffs or amazingly elongated feathers, which are known as wires or ...