The Earth is home to an incredible diversity of bird species, living in practically every habitat, from the open oceans to the arid deserts. In some parts of the world, these animals have adapted and ...

With their distinctive spiky yellow eyebrows and bouncing movement up steep cliffs, these feisty little penguins are true daredevils of the Southern Ocean. The Southern Rockhopper Penguin is a small, ...

Browse our growing list of family guides to learn all about them. Showing 85-91 of 91 birds ...

Despite their incredible diversity in shape, color, and size, most people find it easy to distinguish birds from other vertebrate classes like mammals and reptiles. The tiny, jewel-like Hummingbird is ...

Browse our growing list of species guides to learn all about birds.

Browse our growing list of family guides to learn all about them.

Known for its stunning crimson and green plumage, this vibrant parrot lights up gardens and rainforest edges across eastern Australia. The Australian King-parrot is a striking medium-sized parrot with ...

Birds aren’t distributed randomly across the globe. Instead, each habitat supports its own unique collection of bird species that have evolved to live there. Picture a deep green forest, an open ...

Apart from the unusual monotreme mammals of Australia, the combination of internal fertilization, oviparity (egg-laying), and advanced parental care is unique to avians. From flashy feathers and ...

There are roughly ten thousand bird species on earth, all with their own particular diet and feeding behaviors. They range from specialized feeders associated with specific plant species to ...

The avian endocrine system consists of a series of glands that produce and secrete substances known as hormones. These steroids or proteins travel through the bloodstream and act as chemical ...

Maintaining a high metabolic rate and body temperature places an extreme demand on a bird’s respiratory system, especially during the intense physical exertion required for flight. Rapid oxygen ...