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 ...

Frigatebirds skim fish from the surface of the water or chase other birds, forcing them to give up their recent meal ...

Have you ever wondered why, in the hushed tranquility of night, your subconscious mind decides to paint vivid images of birds ...