The highly contagious bird flu, known as H5N1, has been sweeping across the country since January, infecting millions of domestic and commercial flocks, as well as wild birds.
The owner of the Polk County flock notified a private veterinarian after the sudden death of at least one bird. Other birds in the flock also were displaying symptoms consistent with avian flu.
The veterinarian sent a sample of the dead bird to Oregon State University in Corvallis, which came back positive. The U.S. Department of Agriculture’s National Veterinary Services Laboratory officially confirmed the case on June 9.
The Oregon Department of Agriculture is encouraging backyard bird owners to practice good biosecurity and to take steps to prevent contact between their birds and wild birds.