About Birds Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings.

Birds are warm-blooded vertebrates (vertebrates have backbones) and are the only animals with feathers. Although all birds have wings, a few species can't fly.

Why is it a ‘dawn’ chorus? But why birds sing in the early morning is still “an open question,” says Mike Webster, an ornithologist at the Cornell Lab of Ornithology.

Spending time in nature is important for your mental health. But studies show that even just listening to birds singing can ease symptoms of anxiety and depression.

Using more than half a million records collected from five migration sites in the Northeast and Great Lakes regions, scientists have revealed that birds of different species form lasting ...

Some birds may become more aggressive because cities are rich in food sources—and so there’s strong competition to establish a foothold.

Before descending to their nighttime roosts, the birds put on one of nature’s most spectacular displays.

How do birds remain immune? Another enduring mystery is how the birds protect themselves from the deadly toxin they carry.

National Geographic

Looking across the assortment of birds featured here, you’ll notice that each species is vastly different from the others, either in color, shape, or feather arrangement.