The Michigan Department of Natural Resources reminds waterfowl hunters to protect themselves and domestic animals amid ongoing cases of highly pathogenic avian influenza (HPAI). Commonly known as “bird flu,” HPAI is a highly contagious respiratory disease that causes sickness and sometimes death in birds and mammals. Wild birds can carry HPAI without appearing sick.

HPAI has been found in North American waterfowl since 2021. This year, the DNR has detected cases of HPAI primarily in Canada geese, bald eagles and red-tailed hawks. Cases can be found at any time of the year, but upticks are expected during spring and fall waterfowl migrations.

“Although it has been seen in Michigan for a few years now, the patterns of infection differ each year, and we continue to monitor this disease in Michigan’s wildlife,” said Dr. Scott Larsen, DNR wildlife veterinarian. “We count on our hunters, birdwatchers and other Michiganders to let us know what they’re seeing, and the online DNR Eyes in the Field reporting tool is a great way for folks to notify us of events with multiple sick or dead birds.”

Risks to humans

The risk of HPAI infecting people is low, but the virus can infect people, especially those who come into contact with infected animals or material. Although the risk to the public appears to be low, hunters should always take precautions when handling wild birds. Don’t harvest or handle wild birds that are obviously sick or found dead. If you observe a die-off of six or more waterfowl, gulls or shorebirds, report it through the DNR Eyes in the Field online reporting tool or contact your local DNR field office.

If you have close contact with obviously sick or dead wild birds, or surfaces contaminated by them, monitor for these symptoms for 10 days after your last exposure:

• Fever with temperature over 100 degrees Fahrenheit or chills. Fever may not always be present.

• Sore throat.

• Difficulty breathing or shortness of breath.

• Eye tearing, redness or irritation.

• Runny or stuffy nose.

• Muscle or body aches.

• Precautions for waterfowl hunters

• Hunters should take the following precautions to avoid contracting or spreading bird flu:

Cook all meat to an internal temperature of 165 degrees Fahrenheit to kill any viruses.

Process wild birds in the field. Remains from processed birds should be buried on-site or double-bagged and disposed of with household trash.

Avoid touching your eyes, nose and mouth when handling wild birds.

Wear rubber or disposable gloves while handling and cleaning wild birds, and wash hands with soap and water or alcohol-based hand cleanser, even if hands are not visibly soiled.

Thoroughly clean and disinfect all knives, equipment and surfaces that come into contact with wild birds.

Do not eat, drink or smoke while handling or cleaning wild birds.

For more information about HPAI and human health, visit the Michigan Department of Health and Human Services webpage for Communicable Disease Information and Resources or the Centers for Disease Control and Prevention webpage for Avian Flu.

For more information about HPAI in Michigan’s domestic animals, visit the Michigan Department of Agriculture and Rural Development webpage for Avian Influenza (Bird Flu).