Christopher Clark went to Strawberry Canyon in Berkeley and got a bad case of poison oak. Then he tried a shoreline park in Albany, where his camera was stolen and sopping-wet dogs covered his field ...
Many of the world's smallest hummingbirds, including the West Coast's Anna's and the East Coast's ruby-throated, execute display dives to seduce females and drive away intruders. A characteristic ...
The chirps and beeps of hummingbirds at times come from their tails. Male Anna's hummingbirds — the West Coast's most common hummingbird — perform spectacular dive-bomber displays for females during ...
The chirps and beeps of hummingbirds at times come from their tails. Male Anna's hummingbirds — the West Coast's most common hummingbird — perform spectacular dive-bomber displays for females during ...
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 ...
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