Endangered Species

National Park Service officials are working to eliminate a spawning ground for harmful nonnative fish in Glen Canyon.

The Southwestern population of endangered wild Mexican gray wolves has grown for the ninth consecutive year to at least 286.

State and federal officials say recent surveys show there are double the number of endangered Mount Graham red squirrels than anticipated.

Biologists have begun re-introducing endangered black-footed ferrets in Aubrey Valley near Seligman. It's Arizona’s first ferret reintroduction in more than 30 years.

The U.S. Fish and Wildlife Service says an endangered Mexican gray wolf was found dead west of Flagstaff last week.

Park officials say breeding pairs of the Yellow-billed Cuckoo hadn't been observed in Petrified Forest National Park since the 1980s until two were spotted over the summer.

For the first time in the United States, biologists have used a flu vaccine designed specially to protect the endangered California condor.

After more than five decades of recovery efforts, the Apache trout has been removed from the federal list of endangered and threatened species.

Wildlife officials say the first California condor was discovered dead in the fall of 2022 with a second one found in the same area in June. The condor is protected as an endangered species.

An exceptionally restless female Mexican gray wolf nicknamed Asha will be kept in captivity with a potential mate through another breeding season in hopes of aiding the species' recovery.