Hummingbirds in California: Species, Seasons, and Gardening

Anna’s Hummingbird lives here all year and does not leave. Costa’s stays put in parts of the south. And Allen’s Hummingbird has split into two populations: one that still flies to Mexico each winter, and one that has stopped bothering and now breeds in Los Angeles gardens twelve months a year. In a state with a Mediterranean climate, mild winters, and gardens that flower in January, the ancient pressure to fly south has eased considerably.
Hummingbirds in the Pacific Northwest: Species, Timing, and Gardening

The Pacific Northwest is one of the best places in North America to be a hummingbird gardener, and one of the few places on the continent where you can watch a hummingbird in the snow.
Anna’s Hummingbird: Identification, Range, and Behavior

The Anna’s Hummingbird is the West Coast’s year-round resident, hardy enough to hold its ground through winters that send every other North American hummingbird south. It is also the only hummingbird in North America whose entire head, crown and throat both, blazes rose-pink, and the only one whose males sing a real, learned song.
Types of Hummingbirds: A Field Guide to North American Species

Somewhere between 300 and 360 species of hummingbird live in the Americas, but you do not need to know all of them to identify the one hovering at your feeder. North of Mexico the list is far shorter and very learnable.
How Do Hummingbirds Survive Winter? The amazing science of torpor

Hummingbirds have the highest mass-specific metabolic rate of any warm-blooded animal on Earth. They need to feed almost continuously just to stay alive.
Hummingbird Sounds, Chirps & Territorial Behavior Explained

Do hummingbirds chirp? Yes, and they also sing, whistle, and chirp with their tail feathers. Discover what every hummingbird sound means and why they make it.
Why Are Hummingbirds So Colorful? The Science of the Gorget

If the animal kingdom had a fashion week, male hummingbirds would be the undisputed supermodels of the avian world
How Do Hummingbirds Hover? The Aerodynamic Science Explained

If nature were holding a contest for most outrageous flight capabilities, hummingbirds wouldn’t just win—they’d force the judges to create entirely new categories.

