The curve-billed thrasher—the common thrasher of the rich, cactus-laden Sonoran Desert—can be very conspicuous ... particularly in eastern birds. Tail has pale tips, the extent of which ...

In the vast urban sprawl of Arizona, the habitat of the tiny western burrowing owl is being destroyed—prompting ...

When I arrived at the desert field station and stepped ... a slender jet-black bird, perched on a twisted tree. I could see its red eyes through my binoculars as it looked at me, flicking its ...