It’s chilly at dawn in the desert, even though blazing heat will arrive before midday. To the east, stark outlines of cactus and thorny trees stand against the growing light. And on all sides, the air ...

Desert birds lay larger eggs when they have more helpers to feed their chicks, new research shows. White-browed sparrow weavers live in family groups in which only a dominant pair breeds and their ...

For 500 miles, I’d driven south, air conditioner blasting, radio on. When I arrived at the desert field station and stepped out onto the gravel, I was hit all at once by the heat, the quiet, and a ...

Every year, billions of birds undertake extraordinary migrations, crossing vast deserts and open seas with no place to stop, feed, or rest. A new international study published in iScience by a ...

The Center for Biological Diversity has asked the U.S. Fish and Wildlife Service to add the Bendire's thrasher to the endangered species list. The thrasher is a rare desert songbird whose habitat is ...