Researchers suspect that dark-eyed juncos living in Los Angeles adapted based on the availability of food scraps tossed by ...

A rare species prized by birders in Southern Arizona has been unceremoniously stripped of its elegance, and at least one local expert isn’t happy about the change. A leading panel of taxonomists ...

Enjoy the elegant trogon, a longtime summer visitor to Southern Arizona that now is increasingly staying for the winter. But don't get too attached to the purple finch, because that mountain bird's ...