Birds that call Arizona's desert ecosystem home — including the state's iconic cactus wren — are in serious decline, according to a sweeping new conservation report. Why it matters: Birds are ...

A global outbreak of avian flu is reaching Arizona, though officials believe the public health risk remains low. According to the Centers for Disease Control, H5 bird flu has spread in wild birds ...

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 ...