Winged visitors alien to the area have been casting their large shadows over Contra Costa and Stanislaus counties recently. Preservation group Save Mount Diablo said in a statement Monday they’ve ...

Birds, by design, tend to be small, light and streamlined. Yet there are some that push the boundaries of size. Here is the avian world’s best example of an ultra-heavyweight flyer. Birds of prey are ...

Winged visitors alien to the area have been casting their large shadows over Contra Costa and Stanislaus counties recently. Preservation group Save Mount Diablo said in a statement Monday they've ...

California condors are moving farther into the East Bay. Seven of the endangered birds flew north into Alameda and Contra Costa counties on a circuitous aerial tour on Aug. 18, the conservation group ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Engineers are finding new ways to make wind turbines more ...