(Corvallis, OR) -- Endangered California condors are dying from bird flu. Researchers at Oregon State University have found at least seven deceased condors from the northern Arizona population with avian influenza. The U.S. Fish and Wildlife Service reports 20 condors have died with 10 confirmed to have bird flu. There are only about 500 California condors in the world and the threat from bird flu is concerning. 40-million egg-laying hens in the U.S. have died since the bird flu outbreak began in 2022.