Waterfowl Hunters and the Avian Flu: What You Need to Know

Frequently asked questions for duck and goose hunters regarding High Pathogenic Avian Influenza (HPAI)

USFWS

The following talking points and materials are provided to help answer questions about the current outbreak of High Pathogenic Avian Influenza (HPAI) in North America.

UPDATED AUGUST 25, 2024: USDA APHIS retains revised guidance on allowable conditions for importation of harvested game birds from Canada issued on August 3, 2023. Read full release HERE.

What is Avian Flu?

Avian flu (bird flu) is a common, naturally occurring virus in birds that has many forms or subtypes.

Scientists believe all birds are susceptible to infection by some form of avian flu. Some birds, like waterfowl, can be infected with the virus but develop no signs of illness.

Birds become infected through direct contact with secretions or feces of infected birds, contaminated surfaces, or infected food and water supplies. It also may be possible for wild birds to transfer the virus by their feet, feathers or dander.

How severe is Avian Flu?

The severity of avian flu varies based on the subtype of the circulating virus and is classified as either low pathogenic avian influenza (LPAI) or high pathogenic avian influenza (HPAI).

Most avian flu subtypes are LPAI and cause little or no signs of illness in domestic or wild birds and pose no threat to human health. These subtypes are found every year in waterfowl.

The subtype responsible for the outbreak that began in 2021 is highly pathogenic, and thus is of heightened concern.

What are the signs of High Pathogenic Avian Influenza?

HPAI symptoms in wild birds can include: nervousness, tremors or lack of coordination, swelling around the head, neck and eyes, lack of energy or movement, coughing, gasping for air or sneezing, diarrhea, or sudden death. However, wild birds, particularly waterfowl, infected with HPAI may be asymptomatic.

Are there risks to humans from HPAI?

The risk of catching avian flu from wild birds is very low; however, hunters and people who prepare and cook wild birds are encouraged to follow safe food handling practices, as outlined via government health agencies.

Avian flu does not pose a food safety risk when wild or domestic poultry products are handled and cooked properly.

HOW CAN HUNTERS HELP?

Report sick birds or unusual bird deaths to State or Federal officials, either through your state veterinarian or APHIS toll-free number, 1-866-536-7593.

Follow all APHIS guidelines for handling harvested waterfowl. These practices are especially important for hunters who interact with commercial or backyard poultry.

Participate in state and federal HPAI surveillance efforts when asked, thereby helping scientists track changes in viral prevalence and genetic mutation.

Are there risks to my dog from HPAI?

HPAI has been confirmed to cause illness and mortality in multiple species of mammals, including wild canids such as foxes. Data from a 2022–23, DU-funded study of waterfowl hunting dogs in Washington state found evidence of HPAI antibodies in only 2% of sampled dogs. As of September 2024, there has been only 1 confirmed case of a domestic dog dying from HPAI infection in North America. Nevertheless, as a matter of caution, it is recommended that dogs not be allowed to retrieve or come in contact with birds that appear sick or have been found dead. Hunters should also not feed their dogs raw meat from harvested birds nor allow them to come in contact with discarded carcasses or entrails.

What are the concerns for the dairy industry?

The United States Department of Agriculture (USDA) has detected highly pathogenic avian influenza (HPAI) in sick dairy cattle in some areas of the United States. Please review the most up-to-date information available in the “Additional Resources” links at the bottom of this web page.

What are the concerns for the poultry industry?

Domestic poultry have no natural immunity to HPAI, and so experience nearly 100% mortality when infected. High concentrations of domestic birds facilitate transmission throughout poultry barns. These vulnerabilities mean that HPAI can have devastating economic consequences to the poultry industry and protein supply chain.

Prevention, preparedness and response efforts are operated by government agencies (US Department of Agriculture Animal and Plant Health Inspection Service, Canadian Food and Health Inspection Agency, Mexican National Service of Health, Safety and Agrifood Quality) including strict biosecurity efforts to reduce the introduction of HPAI into poultry flocks.

Waterfowl, and many other wild bird species, are sources of viral spread over short and long distances and have a potential role in poultry infections.

Poultry outbreaks are often due to the lack of and/or adherence to existing biosecurity protocols. Although waterfowl have been widely implicated to be a principal reservoir of infection for poultry flocks, the science around transmission of virus between poultry operations and wild birds or other mechanisms (e.g., indirect exposure, airborne, wildlife trade) is currently inconclusive.

How is Ducks Unlimited responding to HPAI?

We recognize that HPAI is a major concern to the domestic poultry industry but at present is considered a low-risk human health concern.

We monitor avian flu developments from the lead natural resource and human health agencies in North America and across the world.

We direct all queries to the lead government agencies.

We join many other organizations world-wide to strongly oppose the culling of wild birds and the draining of wetlands as a means of controlling avian flu.