Learn more about the breathtaking rapid wing speed of hummingbirds. An expert reveals how fast hummingbirds fly and flap ...

Tiny among birds, Anna’s hummingbirds are considered medium-sized and stocky for a hummingbird. Anna’s hummingbirds are 3.9 to 4.3 inches long with a wingspan of 4.7 inches. Their weight ranges from 0 ...

To our eyes, they often are a blur. But high-speed cameras show us what makes these birds perfect flying machines. A captive Anna’s hummingbird feeds while hovering before an optical illusion in a ...

Tail slightly rounded to double-rounded. Adult male: rose (fresh) to orange-red (worn) gorget and crown. Adult female: throat and underparts spotted and mottled dusky to bronzy green, median throat ...

Berkeley -- The beeps, chirps and whistles made by some hummingbirds and thought to be vocal are actually created by the birds' tail feathers, according to a study by two students at the University of ...

Perched like garnets amid a blur of wings, male Anna’s hummingbirds reach full territorial fervor this month as they guard cherished patches of chaparral flowers. Along the coast males endure slashing ...