Written by HLRBO Staff|
Last updated
Federal wildlife-health records show 261 highly pathogenic avian influenza detections in wild birds between August 1 and September 16, 2026, and roughly three-quarters of them came out of five states whose duck seasons open this month or next. The CDC still rates the public health risk as low. The useful question for a waterfowl hunter is narrower than the headline, and the answer mostly turns on what happens between the blind and the tailgate.
What the federal file actually shows
USDA APHIS publishes every confirmed detection of highly pathogenic avian influenza in wild birds as a downloadable file behind its wild bird detections page. Pulled on September 20, 2026, that file runs to 19,859 records, the first detected January 12, 2022 and the most recent September 16, 2026.
Filter it to August 1 through September 16 of this year and 261 records remain, spread across 23 states. Five states hold 195 of them: Minnesota with 61, Utah with 44, Idaho with 39, Iowa with 28 and North Dakota with 23. Divide 195 by 261 and you get 74.7 percent of the country's late-summer detections sitting in five states, with the other 18 states splitting the remaining 66. Mallards account for 115 of the 261 birds. Canada geese account for 37, bald eagles 23, common eiders 20 and northern pintails nine.
The county detail is where it gets useful. Thirty-one of Idaho's 39 detections came from Kootenai County in the Panhandle. Twenty-four of Iowa's 28 came from Butler County. Seventeen of North Dakota's 23 came from Burleigh County. Twenty-eight of Utah's 44 came from Davis County along the Great Salt Lake. Minnesota's cluster sits in Hennepin and Ramsey counties, 34 of its 61, which is the Twin Cities, and that is a fair reminder that this data tracks where birds get found and reported as much as where virus is.
Now line those places up against the calendar. Minnesota's regular duck season for 2026-2027 opens Saturday, September 26, 2026 statewide, per the DNR's August 31, 2026 season announcement. North Dakota opens its 2026-2027 duck season the same day, September 26, 2026, for residents and October 5, 2026 for nonresidents. Idaho's Duck Area 3, which contains Kootenai County, runs October 10, 2026 through January 22, 2027 under the state's 2026-2027 migratory game bird rules. The detections and the openers are landing on top of each other, which is what APHIS says to expect; on its commercial and backyard flock page the agency notes that detections are "higher in the fall and spring, because we continue to see wild birds spreading virus as they migrate to their seasonal homes."
The monthly counts show the ramp plainly. July produced 22 detections nationwide. August produced 144. The first 16 days of September produced 117.
Hunters are close to a third of the surveillance signal
Of the 19,859 wild bird records, 5,838 list a hunter-harvested bird as the sampling method, 5,657 logged as "Hunter harvest" and another 181 with different capitalization. Divide 5,838 by 19,859 and hunters account for 29.4 percent of every confirmed wild bird detection in the country since 2022. Those detections are seasonal for the obvious reason: 879 came in October, 1,427 in November, 1,604 in December and 592 in January, which is 4,502 of 5,838, or 77 percent, inside four months.
The species list from those hunter-harvested birds reads like a strap. Green-winged teal lead with 1,389, then mallards with 1,194, blue-winged teal with 698 and American wigeon with 642.
That is the honest framing of a hunter's relationship to this virus. You are not a bystander to the surveillance system. A large share of it runs through your game bag.
What the CDC actually says, and what it does not
Be literal here, because exaggeration and dismissal both cost you. The CDC's situation summary, last reviewed March 6, 2026, says: "While the current public health risk is low, CDC is watching the situation carefully and working with states to monitor people with animal exposures." The same page reports "71 total reported human cases of A(H5) bird flu reported in the United States since February 2024."
The CDC's prevention page is where a hunter gets placed on the risk ladder: "People with job-related or recreational exposures to birds or other avian influenza A(H5) virus-infected animals are at greater risk of infection." Low baseline, elevated by what you choose to do with your hands. The joint fact sheet from the Minnesota Department of Health and Minnesota DNR, last updated in April 2023, says the same thing without softening it: "The risk to hunters is very low, but rarely, in other parts of the world, people in direct contact with infected wild birds have gotten sick from similar highly pathogenic H5 avian influenza viruses."
Note what nobody is saying. The CDC summary does not publish an exposure breakdown for those 71 cases on that page, so it does not establish that any of them traced to cleaning a harvested duck. Absence of a documented case is not the same as proof there is no path, and agencies have been careful not to claim otherwise.
The field practice that follows from all that
The state guidance is remarkably consistent, which makes it easy to act on. Minnesota's fact sheet says to "field dress and prepare game outdoors or in a well-ventilated area" and to "wear rubber or disposable latex gloves while handling and cleaning game." Afterward, "wash hands thoroughly with soap or disinfectant, and clean knives, equipment, and surfaces that came in contact with game."
Do not handle birds that were already dead or that look sick. The CDC's language is blunt: "Do not handle wild birds or other animals that are obviously sick or found dead." And while you are working, "do not eat, drink, or place anything in your mouth."
Cook to 165 degrees Fahrenheit. That number shows up everywhere, including the Oklahoma Department of Wildlife Conservation's waterfowl guidance and the CDC's own note that "the proper handling and cooking of poultry and eggs to an internal temperature of 165˚F kills bacteria and viruses, including HPAI viruses."
Gear moves virus too. The Missouri Department of Conservation, in a November 7, 2022 release, tells hunters that avian influenza viruses can be transported on boats, waders or other equipment, especially if the gear is not dry before it moves from one site to another, and that allowing hunting equipment to dry between outings reduces that chance. Sherri Russell, the agency's State Wildlife Veterinarian, said in the same release that "it is safe to eat poultry and wild game birds because normal cooking temperatures are hot enough to kill the virus if present." Double bag entrails and put them in a covered trash can rather than leaving a gut pile where scavengers will find it. Bald eagles turned up 23 times in this fall's 261 detections, and that is how.
Why the hunter who keeps chickens is the reader to worry about
Everything above is ordinary hygiene. This next part is the one that actually matters, and it is the reason APHIS runs wild bird surveillance at all. The agency's own framing: "Wild birds can be infected with highly pathogenic avian influenza (HPAI) and show no signs of illness. They can carry the disease to new areas when migrating, potentially exposing domestic poultry to the virus."
A healthy-looking mallard in your game bag can carry virus on feathers, feet and feces. Your boots and your coat carry what the mallard carried. If the walk from the truck to the cleaning station passes the coop, you have just built the bridge that the entire federal biosecurity apparatus exists to prevent. Minnesota's fact sheet spells out the countermeasure in one sentence: "Change and wash clothing before having contact with domestic poultry or pet birds." Oklahoma's guidance goes further for anyone who keeps birds, recommending disinfection of equipment and clothing with a mild bleach solution of four fluid ounces of bleach per gallon of water.
This is not theoretical. APHIS's commercial and backyard flock dashboard recorded seven backyard flock detections in June 2026, zero in July, four in August and two so far in September, with September still flagged as the last reporting month and therefore incomplete. Small numbers, and every one of them is somebody's flock gone.
The Pennsylvania Game Commission sorts its response by exactly this risk. Dr. Andrew Di Salvo, the agency's wildlife veterinarian, said in a February 23, 2026 release that "high-priority incidents include cases with clear human or domestic animal exposure, a public site, such as a park or playground, that could pose an exposure risk to humans or domestic animals, or a large number of sick or dead wildlife on the landscape that could pose an exposure risk to scavenging wildlife." Domestic animal exposure sits at the top of the list for a reason.
What is not settled
Detection data is not prevalence data. A county with a lot of detections may simply be a county with a lot of people reporting dead birds, which is the most likely read on the Twin Cities cluster. The APHIS file also changes as labs confirm new records, so every count in this piece is a snapshot taken September 20, 2026 and will not match the file a week later.
State guidance differs on specifics, and hunting regulations differ more. Pennsylvania recommends nitrile gloves, eye protection and a mask. Minnesota and Oklahoma stop at gloves and ventilation. Wherever you hunt, the authority on your season dates, your reporting requirements and your state's sampling program is your own agency, not a national summary. Check before the opener, not after.
None of this argues for staying home. Every agency quoted here tells hunters to go, and the Pennsylvania release specifically encourages continued participation in open seasons. The ask is smaller: gloves on, work outside, wash up, cook to 165, and never walk from the duck boat to the chicken run in the same clothes.
The birds are moving. So is the virus, and so, in a few days, are you. The HLRBO Lease Finder can help you sort out where you are hunting this fall, but what happens in the tailgate after the hunt is on you, and this year it is worth ten extra minutes. More reporting for hunters and landowners lives on the HLRBO blog.