Now, while there are 15 hummingbird species found in the U.S., some of them are extremely rare. The violet-crowned hummingbird and the white-eared hummingbird, for example, both have population ...

A true treasure of the Americas, hummingbirds are a diverse family of more than 340 species, only 17 of which are found north of Mexico. They are also keystone mutualists, nectar feeders that have ...

Two hummingbirds hovering on a flower - Bill Draker/Getty Images Imagine a creature lighter than a penny taking a journey well over hundreds of miles just to survive the winter. This is exactly what ...

Anna's hummingbirds seem to be thriving amid urbanization in California, even as other hummingbird species have declined due to human activity. VWPics / Universal Images Group via Getty Images Many ...

Keep hummingbird feeders up year-round in mild climates, but take them down after migration in colder areas. Some winter hummingbird sightings occur due to vagrant birds, which can find nutrition in ...

Late April and early May are officially the start of hummingbird season in Pennsylvania. Only one species of hummingbird makes its home in our state, and only temporarily: the ruby-throated ...

Bill shape affects how efficiently a hummingbird feeds and how it competes with other hummingbirds. Because of humans, they ...