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.

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Engineers at Stanford University in California found that Anna's Hummingbird (pictured) is more efficient than the best micro helicopter Think the ratio of the bird's wings make it so efficient ...

A Rufous hummingbird and other bird species were recently seen across the Tri-Cities. Here's why local naturalists took the ...

The males Anna’s are easily separated by their iridescent magenta gorget while a similar species, the Allen’s hummingbird, is coppery orange. Hummingbird predators are plentiful, and include ...

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 ...

After fall migration ends, many North American residents pull their hummingbird feeders in for the season. But when is the ...

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 ...

The Bird in My Backyard captures the beauty of hummingbirds up close — and one man’s secret view into their world ...

Another stunning close-up, this time of an Anna's hummingbird with its tongue extended. This photo ... [+] placed 41st in the contest. The tongue is somewhat translucent and works by capillary ...

asks reader Nancy Sherman of Orange, California. Kenn and Kimberly say, “A hummingbird nesting in your area in January would be either Anna’s hummingbird or Allen’s hummingbird. Reuse of ...

The male’s head is covered in red feathers, and the Anna’s hummingbird is a permanent resident of the Bay Area, finding our warmer winters preferable to a long migration. I love hummingbirds.