It's no secret that hummingbirds are tiny — but just how small are hummingbird eggs? Their teeny-tiny size might surprise you!

At roughly 1 centimeter long, hummingbird eggs rank as the smallest bird eggs in the world. Even people who regularly notice ...

Hummingbird migration is underway, and these tiny travelers are making their way across the country. Despite their small size ...

This was one seriously agitated ruby-throated hummingbird. Almost 40 years ago, but I can still see myself and four undergraduate assistants standing in a small opening within a heavily forested ...

Put our your feeders and grab your binoculars, hummingbird migration season is upon us. Here's when and how to spot the little birds in Arizona.