The Anna’s hummingbird can be found along the Pacific Coast. In California, these birds — who “take to hummingbird feeders ...

With plenty of artificial nectar available, Anna’s hummingbirds have expanded their range northward and their beaks have tended to become longer and larger ...

Researchers have noted that the widespread use of hummingbird feeders in California has altered the shape of the Anna’s hummingbird’s beak. Their beaks have elongated and tapered at the tip ...

The 20th century expansion of nectar feeders drove Anna’s Hummingbirds to spread across California—and transformed the birds ...

the scientists partnered with other researchers to analyze how often bird feeders were sold in California according to newspaper clippings. Alexandre and Romero found that the sales of bird ...

During the research process, the study authors sifted through newspaper archives in California, tracking hummingbird feeder mentions by county and comparing that to census data and scientific bird ...

Spring is associated with things such as time changes or wildflowers in bloom, but it is also a time to go birding. Seven hummingbird species can be spotted in California, but where you are in ...

A new study that details the evolutionary change of Anna’s hummingbirds found their beaks have grown longer and more tapered to get the most from common feeders.