All birds fly high in the sky, soaring to new heights in search of a home and food. However, while some are always visible to us-- like pigeons and crows-- others do not even catch the human eye ...

Every year, billions of birds migrate in and out of the United States. And across the world, birds fly thousands of miles to ...

Scientists accidentally discovered a new way of monitoring the Earth’s planetary boundary layer: high-flying great frigatebirds ...

Vultures soar high in the air, watching and sniffing for carrion to feed on. They have a highly developed sense of smell, useful for birds that scavenge for food. Another hallmark of vultures is ...

This story appears in the January 2018 issue of National Geographic magazine. If birds left tracks in the sky, what would they look like? For years Barcelona-based photographer Xavi Bou has been ...