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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: November 19, 2024
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Last Modified: November 19, 2024
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: December 23, 2024
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method...Montana Gallatin 11/27/2024 12/17/2024 EA H5N1 Snow goose Wild bird Morbidity/Mortality Montana Gallatin 11/27/2024 12/17/2024 EA H5 Snow goose Wild bird Morbidity/Mortality
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification
Montana Jefferson 12/17/2024 1/3/2025 EA H5N1 Trumpeter swan Wild bird
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February 25, 2025
Sick waterfowl reported on Bighorn River, public urged to stay cautious
HARDIN, Mont. – Montana Fish, Wildlife & Parks said the department has received reports of sick and dead waterfowl along the Bighorn River, stretching from Afterbay to the I-90 bridge near Hardin.
FWP suspects the cause is Highly Pathogenic Avian Influenza. Staff have collected carcasses for testing at FWP’s Wildlife Health Lab in Bozeman, though results may take a few days.
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FWP advises the public to avoid contact with sick or dead wildlife and to prevent pets from interacting with affected birds or their droppings. Domestic poultry owners should maintain strict biosecurity to avoid contact between their birds and wild ones.
If you encounter five or more sick or dead wild birds outside the specified Bighorn River area, contact the Billings FWP office at 406-247-2940 or the Wildlife Health Program in Bozeman at 406-577-7880. Report sick or dead domestic birds to the Montana Department of Livestock at 406-444-2976.
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Source: https://www.kbzk.com/news/local-news...nd-in-belgrade
Bird flu confirmed in Canada goose found in Belgrade
By: Hevenn Vanh
Posted 22 minutes ago
The Montana Department of Livestock is warning residents of avian influenza, commonly known as bird flu after a Canada goose was found with the disease in Gallatin County.
Officials say, on Feb. 26, the bird was found on Reese Creek Road in Belgrade. It was tested after displaying abnormal behavior despite not being injured.
According to the department, the goose is the latest of 25 bird flu infections identified across the country in the last week...Comment
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Post #5 above:
FEBRUARY 2025 BIGHORN RIVER WATERFOWL DIE-OFF LINKED TO STARVATIONFebruary 25, 2025, 03:18 PM
February 25, 2025
Sick waterfowl reported on Bighorn River, public urged to stay cautious
HARDIN, Mont. – Montana Fish, Wildlife & Parks said the department has received reports of sick and dead waterfowl along the Bighorn River, stretching from Afterbay to the I-90 bridge near Hardin.
FWP suspects the cause is Highly Pathogenic Avian Influenza. Staff have collected carcasses for testing at FWP’s Wildlife Health Lab in Bozeman, though results may take a few days.
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May 5, 2025 9:15 AM
BILLINGS –After extensive testing, Montana Fish, Wildlife & Parks has concluded that the death of a large number of waterfowl on the Bighorn River in February was caused by starvation.
In February, FWP staff collected mallard, geese and shorebird carcasses from Afterbay to about three miles downstream of the Bighorn Fishing Access Site. The carcasses were transported to FWP’s Wildlife Health Lab in Bozeman for Highly Pathogenic Avian Influenza (HPAI) testing. All carcasses tested negative for HPAI.
Following these negative results, the waterfowl carcasses were sent to the U.S. Geological Survey’s National Wildlife Health Center (NWHC) in Wisconsin for further testing and investigation. No evidence of infectious diseases was detected. Emaciation and starvation were the only consistent ailments found in all sampled carcasses.
FWP’s mid-winter waterfowl surveys for the Bighorn River, conducted in early January, showed higher than average waterfowl numbers, which likely lead to more competition for the limited food in the area. Early 2025 brought extreme cold temperatures and large amounts of snowfall to the region, making the search for food even more challenging.
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: May 07, 2025
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method...Montana Deer Lodge 12/12/2024 4/30/2025 EA/AM H5N1 Great horned owl Wild bird Morbidity/Mortality Montana Big Horn 11/28/2024 4/30/2025 EA/AM H5N1 Trumpeter swan Wild bird Morbidity/Mortality Montana Big Horn 12/6/2024 4/25/2025 EA/AM H5N1 Mallard Wild bird Hunter harvest Montana Big Horn 12/13/2024 1/8/2025 EA H5 Mallard Wild bird Hunter harvest Montana Big Horn 12/6/2024 1/8/2025 EA H5 Common goldeneye Wild bird Hunter harvest
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: June 04, 2025
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH ClassificationMontana Gallatin 5/2/2025 6/2/2025 EA/AM H5N1 Great horned owl Wild bird
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: June 11, 2025
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification
...Montana Madison 11/18/2024 6/5/2025 EA/AM H5N1 Trumpeter swan Wild bird Montana Gallatin 4/21/2025 6/4/2025 EA H5 Snow goose Wild bird Montana Gallatin 4/21/2025 6/4/2025 EA H5N1 Turkey vulture Wild bird Montana Deer Lodge 12/13/2024 6/3/2025 EA/AM H5N1 Great horned owl Wild bird
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: July 09, 2025
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
...Montana Ravalli 2/24/2025 7/3/2025 EA/AM H5N1 Great horned owl Wild bird Morbidity/Mortality Montana Ravalli 2/24/2025 7/3/2025 EA/AM H5N1 Great horned owl Wild bird Morbidity/Mortality
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: September 09, 2025
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling MethodMontana Gallatin 8/25/2025 9/4/2025 EA H5 Great horned owl Wild bird Morbidity/Mortality Montana Gallatin 2/25/2025 7/10/2025 EA H5 Canada goose Wild bird Morbidity/Mortality Montana Missoula 11/17/2024 7/7/2025 EA H5N1 Great horned owl Wild bird Morbidity/Mortality Montana Missoula 11/17/2024 7/7/2025 EA H5 Swan (unidentified) Wild bird Morbidity/Mortality Montana Lewis and Clark 1/14/2025 7/7/2025 EA/AM H5N1 Canada goose Wild bird Morbidity/Mortality Montana Lewis and Clark 1/14/2025 7/7/2025 EA/AM H5N1 Canada goose Wild bird Morbidity/Mortality Montana Ravalli 2/24/2025 7/3/2025 EA/AM H5N1 Great horned owl Wild bird Morbidity/Mortality Montana Ravalli 2/24/2025 7/3/2025 EA/AM H5N1 Great horned owl Wild bird Morbidity/Mortality Montana Powell 2/14/2025 7/2/2025 EA/AM H5N1 Bald eagle Wild bird Morbidity/Mortality Montana Gallatin 3/5/2025 7/2/2025 EA H5 Bald eagle Wild bird Morbidity/Mortality ...Montana Gallatin 3/3/2025 7/2/2025 EA/AM H5N1 Red-tailed hawk Wild bird Morbidity/Mortality Montana Cascade 2/26/2025 7/2/2025 EA/AM H5N1 Great horned owl Wild bird Morbidity/Mortality Montana Gallatin 3/10/2025 7/2/2025 EA/AM H5N1 Red-tailed hawk Wild bird Morbidity/Mortality
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: September 17, 2025
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification...Montana Gallatin 9/4/2025 9/12/2025 EA H5 Turkey vulture Wild bird
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Detections of Highly Pathogenic Avian Influenza in Wild Birds
Last Modified: September 24, 2025
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method...Montana Park 9/11/2025 9/17/2025 EA H5 Canada goose Wild bird Morbidity/Mortality
https://www.aphis.usda.gov/livestock...ons/wild-birds
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