The Andean condor is the world's biggest bird of prey, which can weigh up to 15 kg and has a wingspan of up to 3.3 meters.

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world.

The ostrich, the world’s largest bird, is indigenous to Africa, where ranchers have raised it for commercial purposes for more than a century. A decade ago, entrepreneurs thought that southeastern ...

In 2002, an online database was set up allowing birdwatchers to record their species observations. It is now a vast resource, ...

The average length of a sword -billed hummingbird’s beak ranges from 8 to 12 centimeters (3.1–4.7 inches). Their beaks are ...