Add Yahoo as a preferred source to see more of our stories on Google. Hummingbirds have one of the highest metabolic rates of any vertebrate. They are the only birds capable of sustained backward ...

Hummingbirds are unique among birds for numerous reasons, and that also includes their backward flying capability. Like almost every other bird species, they can do it all: hover, fly upside down and ...

Hummingbirds are one of nature’s most fascinating creatures. They’re the only birds that can fly backwards, upside down, and while hovering, and even though they weigh less than a nickel, they have ...

With the work it takes to raise a hummingbird family, females are typically scarce through the summer. But now, they're starting to appear.