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 ...

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 ...

The Pink-footed Goose is characterised by its greyish-brown plumage, short pink bill with a black tip, and distinctive pink legs. Its head and neck are darker brown, contrasting with a paler breast ...

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 ...

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 ...

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

Each year, billions of migratory birds switch between spring/summer breeding grounds and overwintering grounds, although their movements vary greatly between species and populations. Their journey may ...

This chirpy little songbird has charmed its way across Europe and Asia, becoming a familiar sight in both rural fields and bustling city parks. The Eurasian Tree Sparrow is a small, compact bird with ...

With piercing red eyes and a knack for nocturnal fishing, this stocky heron brings a sense of mystery to wetlands worldwide. The Black-crowned Night-heron boasts a striking contrast of colours. Adults ...

Bird migration has captured our imagination throughout history, although a solid understanding of avian movements has remained elusive until relatively recently. Modern science and technology have ...

Towering over wetlands worldwide, this elegant wader strikes an imposing figure with its snowy plumage and dagger-like bill. The Great White Egret is a striking, tall, wading bird with pure white ...