On a cliff’s edge, overlooking the rippling waters of Lake Pleasant, biologists from the Arizona Game and Fish Department anchored ropes to nearby palo verde trees before carefully lowering themselves ...

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 ...

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 ...

Have you ever wondered why certain Northern Arizona bird species remain here year-round while others fly south to warmer environments? On any clear, frigid winter’s day, we spy house finches, ...

This pretty Lesser Goldfinch bird was hanging out on this limb as a number of bird watchers were up early this morning checking it out as they took part in the "Wake Up With The Birds" walk at Agua ...

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 ...

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 ...

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 ...