Add Yahoo as a preferred source to see more of our stories on Google. MARBLE CANYON, Ariz. — Nestled among Arizona’s colossal Vermilion Cliffs, an inconspicuous building bustles with the sounds of ...

Arizona’s desert birds are in decline, according to a national conservation report tracking long-term bird populations, prompting one conservation group to ask the federal government to take action on ...

Earth’s vertebrate diversity may be far richer than anyone realized. A sweeping analysis of more than 300 studies suggests that for every known fish, bird, reptile, amphibian, or mammal species, there ...

Since the Northern Arizona Audubon Society joined a global bird tracking system known as Motus, “bird nerds” across the state have been waiting for the first “hit.” “This is the nerve-racking part,” ...

Scientists studying data collected over more than three decades found accelerating losses. Their research offers clues about the causes.

Get ready to flock to these locations.

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 ...

Biologists treat sick and injured condors in a remote "hospital" in northern Arizona. The birds also receive vaccines to fight the avian flu. The condors ingest lead ammunition when they eat animal ...