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 ...

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 ...

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.

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 ...

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 ...

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 ...

Birds are an incredibly diverse group of animals that have conquered almost every habitat on Earth. One thing every avian has in common is their origin in the egg. Although the shell’s size, shape, ...

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 ...

Native to Europe, Southern Asia and the Arabian Peninsula this dove’s rapidly expanding range from the mid 1970s now includes the Caribbean and North America where its numbers continue to increase.

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 ...

Long-tailed jaegers are migratory seabirds, covering epic distances between their breeding grounds along the High Arctic coasts and their wintering territories in the open waters of the South Atlantic ...