On a work-related trip to Yuma (Yuma County, Arizona), I squeezed in 2 evenings of birding along the Colorado River (Yuma Wetlands East and West) and a morning of birding in the desert near Imperial Sand Dunes Recreation Area in Imperial County, California. I was able to find 69 bird species and a desert tortoise (!). Photos of some of the birds are shown here.
Yuma landmark overlooking the Colorado River valley