Every spring, hummingbirds embark on an ambitious migration, flying thousands of miles from Central America and Mexico to breeding grounds in the U.S. and Canada. Hummingbirds migrate an average of 23 ...

Hummingbirds in North America are currently experiencing contrasting population changes, and little is known about the factors contributing to these changes. We examined the demography of two species ...

SALT LAKE CITY — It's about 3 inches long and weighs as much as a penny. But a calliope hummingbird is a tough little bird. It can fly up to 5,600 miles in a year. Despite its tiny stature, the ...

Quick Take Ruby-throated hummingbirds migrate about 2,000 miles annually from North America to the Yucatan Peninsula and back. Up to 70% of juveniles and 40% of adults perish along migration due to ...

Hummingbirds, the tiniest birds in the world, have some impressive flying and navigating skills. Most North American hummingbird species are migratory. Each year, these minuscule creatures head south ...

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

They’re back! I am talking about the orneriest bird of its size; one that is very protective of its feeder; one that chases other birds from its feeder; and one that chases all birds from similar ...

An Anna’s hummingbird calls out from the bare branch of a Hachiya persimmon tree in a Santa Cruz backyard. According to American Bird Conservancy’s website, the bird was named for the 19th century ...

If dogs are a man's best friend, then hummingbirds are a man's best backyard companion. These delightful, colorful, little birds are not just entertaining but also are great pollinators throughout the ...