Montana - Avian flu in wild birds 2024-2026

[Pathfinder]

Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: January 28, 2026
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

Montana	Big Horn	1/4/2026	1/21/2026	EA H5	Mallard	Wild bird	Hunter harvest
Montana	Stillwater	12/20/2025	1/20/2026	EA H5	Gadwall	Wild bird	Hunter harvest
Montana	Stillwater	12/20/2025	1/20/2026	EA H5	Mallard	Wild bird	Hunter harvest

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https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza/hpai-detections/wild-birds

[Pathfinder]

Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: March 10, 2026
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State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

Montana

Ravalli

1/11/2026

3/3/2026

EA H5

Red-tailed hawk

Wild bird

Morbidity/Mortality

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https://www.aphis.usda.gov/livestock...d-birds?page=1