tinny pit call and twitters distinct from Anna’s. Costa’s generally plainer on throat and underparts, without dusky throat spotting. See black-chinned hummingbird.

Despite their name, do hummingbirds hum? Hummers certainly make distinct noises, but something else is the cause of that ...

An Anna's Hummingbird sipping from a California Fuchsia. A new study suggests that hummingbirds are accustomed to ingesting small amounts of alcohol from natural sources, such as nectar.

Anna’s hummingbirds, named after Anna Masséna, duchess of Rivoli, are native to western coastal regions of North America. The mixed habitats of the UC Santa Cruz Arboretum and Botanic Garden ...

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 reenactment of an experiment that ...

Click to share on Facebook (Opens in new window) Click to share on Twitter (Opens in new window) Click to print (Opens in new window) An Anna’s hummingbird looks to make sure no predators lurk ...