California condor researchers track every rare survivor in the nearly-extinct species, and mourn the loss of a Colorado visitor to poaching.
The number of California dairy herds reported to have outbreaks of H5N1 bird flu has grown to eight.
Bird flu typically spreads among birds, but there have been recent outbreaks among cattle in the U.S., and one Texas man ...
With the approach of fall and cooler weather across the United States, officials say the risk posed by the H5N1 bird flu ...
State and federal officials have identified new cases of avian influenza at three Central Valley dairies as the number of ...