Marble Canyon, Ariz.—Three California condors have died from avian flu in northern Arizona and authorities are trying to determine what killed five others in the flock, the National Park Service announced Friday.
A sick female condor suspected of having lead poisoning was found dead on March 20 and testing showed it had Highly Pathogenic Avian Influenza (HPAI), the park service said.
Two other birds later found dead also tested positive, while test results aren’t yet completed for five others, the park service said.
The birds are part of a population that moves throughout northern Arizona and southern Utah, including Grand Canyon National Park, the park service said….