Small but speedy. Tiny but aggressive. Little bodies, big appetites. Hummingbirds are a study in extremes. They are the lightest North American birds. Most weigh less than two pennies at 3 to 4 grams.

Editor’s note: This is part of a short series on hummingbirds. We asked expert bird bander, Kay Lookingbill, if we could compile some of her wonderful fun hummingbird facts from her Facebook posts and ...

Humans have been hypnotized by hummingbirds ever since we arrived in the New World. The tiny creatures have a cult following, with many people placing feeders with bright red nectar in their yards to ...

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 ...