Bird flu has been detected in a backyard flock in Crook County. 

The presence of highly pathogenic avian influenza has been detected in a backyard flock in Crook County. This is the first confirmed case of avian influenza in the county, according to a release from the U.S. Department of Agriculture.

Detections of avian influenza are typically higher in the fall and spring months due to waterfowl migration, the agency said. Since May 2022, three commercial poultry flocks and 37 backyard flocks have been affected by the disease in Oregon.

The impacted backyard flock included about 70 birds and consisted of several species of poultry and domestic waterfowl. The entire flock has been euthanized to prevent further spread of the disease.

The Oregon Department of Agriculture has placed the farm under quarantine while other animals on the farm are evaluated.

Avian influenza virus strains are infectious and often fatal to chickens. They can spread rapidly from flock to flock. The Oregon Department of Agriculture is advising commercial poultry farmers and backyard flock owners to monitor bird health and prevent contact between wild birds and domestic flocks.

Biosecurity measures include:

• Washing hands before and after handling a flock.

• Cleaning vehicles, tools and equipment.

• Limiting unnecessary visitors.

• Sanitizing shoes and cleaning foot baths.

• Changing clothes upon contact with birds.

Death and illness among domestic birds can be reported to the Oregon Department of Agriculture by calling 503-986-4711. Wild bird deaths can be reported to the Oregon Department of Fish and Wildlife by calling 866-968-2600.