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Colorado - Avian influenza in wild birds 2024-2026

Detections of Highly Pathogenic Avian Influenza in Wild Birds
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoSaguache10/4/202510/20/2025EA H5American wigeonWild birdHunter harvest
ColoradoSaguache10/4/202510/20/2025EA H5Green-winged tealWild birdHunter harvest
ColoradoJackson10/4/202510/20/2025EA H5MallardWild birdHunter harvest
ColoradoJackson10/4/202510/20/2025EA H5Green-winged tealWild birdHunter harvest
ColoradoAlamosa10/5/202510/20/2025EA H5GadwallWild birdHunter harvest
ColoradoAlamosa10/5/202510/20/2025EA H5Green-winged tealWild birdHunter harvest
ColoradoJackson10/5/202510/20/2025EA H5MallardWild birdHunter harvest
ColoradoRio Grande10/11/202510/20/2025EA H5American wigeonWild birdHunter harvest
ColoradoRio Grande10/11/202510/20/2025EA H5MallardWild birdHunter harvest
ColoradoRio Grande10/11/202510/20/2025EA H5MallardWild birdHunter harvest
ColoradoLarimer10/11/202510/17/2025EA H5Great horned owlWild birdMorbidity/Mortality
ColoradoLarimer10/14/202510/17/2025EA H5Canada gooseWild birdMorbidity/Mortality
ColoradoLarimer10/14/202510/17/2025EA H5Canada gooseWild birdMorbidity/Mortality
ColoradoWeld10/6/202510/15/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoWeld10/7/202510/15/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: October 28, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoWeld10/14/202510/22/2025EA H5Canada gooseWild birdMorbidity/Mortality
ColoradoWeld10/15/202510/22/2025EA H5Great horned owlWild birdMorbidity/Mortality
...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: November 18, 2025
...​
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoLarimer11/6/202511/13/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoEagle10/28/202511/13/2025EA H5Canada gooseWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Eight dead snow geese removed from south shore beach of John Martin Reservoir

By Celeste Springer
Published November 24, 2025 4:24 PM

BENT COUNTY, Colo. (KRDO) -- Colorado Parks and Wildlife (CPW) confirms that eight deceased snow geese were removed from the south shore beach of John Martin Reservoir on Monday.
...
CPW says samples from the geese have been sent to the Wildlife Health Lab in Fort Collins, Colorado. It's unclear exactly what the cause of death was for the geese, at least until samples can be tested. CPW also noted that while eight deceased geese were collected on Monday, the population at the reservoir amounts to about 50,000.

However, the area has had a history of Highly Pathogenic Avian Influenza (HPAI). CPW says that migrating snow geese at John Martin Reservoir have routinely tested positive for HPAI since 2022.
...

https://krdo.com/news/2025/11/24/ei...m-south-shore-beach-of-john-martin-reservoir/
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: December 02, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoSedgwick11/12/202511/24/2025EA H5Snow gooseWild birdMorbidity/Mortality
ColoradoWeld11/15/202511/24/2025EA H5Hawk (unidentified)Wild birdMorbidity/Mortality
ColoradoMorgan11/12/202511/24/2025EA H5Snow gooseWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: December 09, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoRio Grande11/25/202512/5/2025EA H5MallardWild birdHunter harvest
ColoradoLarimer11/19/202512/1/2025EA H5Cackling gooseWild birdMorbidity/Mortality
ColoradoLarimer11/18/202512/1/2025EA H5Canada gooseWild birdMorbidity/Mortality
ColoradoLarimer11/24/202512/1/2025EA H5Cackling gooseWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: December 23, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification
ColoradoWeld12/7/202512/18/2025EA H5Great horned owlWild bird
ColoradoAdams12/9/202512/18/2025EA H5Canada gooseWild bird
ColoradoLarimer12/9/202512/16/2025EA H5Great horned owlWild bird
ColoradoDenver12/8/202512/16/2025EA H5Canada gooseWild bird
ColoradoBent11/26/202512/15/2025EA H5Snow gooseWild bird
ColoradoBent11/28/202512/15/2025EA H5Great horned owlWild bird
ColoradoWeld11/7/202512/15/2025EA H5Great horned owlWild bird
ColoradoWeld11/7/202512/15/2025EA H5Great horned owlWild bird
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: December 30, 2025

State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoLarimer12/1/202512/23/2025EA H5Cackling gooseWild birdMorbidity/Mortality
ColoradoLarimer12/13/202512/19/2025EA H5Great horned owlWild birdMorbidity/Mortality
ColoradoMorgan12/13/202512/19/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoWeld12/15/202512/19/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: January 07, 2026
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification
ColoradoWalker12/23/202512/31/2025EA H5Cackling gooseWild bird
ColoradoLarimer12/22/202512/31/2025EA H5Great horned owlWild bird
ColoradoLarimer12/20/202512/31/2025EA H5Hawk (unidentified)Wild bird
ColoradoLarimer12/21/202512/31/2025EA H5Great horned owlWild bird
ColoradoLarimer12/21/202512/31/2025EA H5Cooper's hawkWild bird
ColoradoWeld12/9/202512/31/2025EA H5Great horned owlWild bird

...
https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: January 13, 2026
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoLarimer12/30/20251/7/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoLarimer12/29/20251/7/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoWeld12/26/20251/7/2026EA H5Cackling gooseWild birdMorbidity/Mortality
ColoradoBoulder12/12/20251/7/2026EA H5Canada gooseWild birdMorbidity/Mortality
ColoradoBoulder12/18/20251/7/2026EA H5Great horned owlWild birdMorbidity/Mortality
ColoradoBroomfield12/15/20251/7/2026EA H5Great horned owlWild birdMorbidity/Mortality
ColoradoLarimer12/29/20251/6/2026EA H5Great horned owlWild birdMorbidity/Mortality
ColoradoLarimer12/29/20251/6/2026EA H5Great horned owlWild birdMorbidity/Mortality
ColoradoDenver12/23/20251/5/2026EA H5Goose (unidentified)Wild birdMorbidity/Mortality
ColoradoWeld12/24/20251/5/2026EA H5Goose (unidentified)Wild birdMorbidity/Mortality
ColoradoLarimer12/24/20251/5/2026EA H5Goose (unidentified)Wild birdMorbidity/Mortality
ColoradoLarimer12/23/20251/5/2026EA H5Goose (unidentified)Wild birdMorbidity/Mortality
ColoradoLarimer12/27/20251/5/2026EA H5Great horned owlWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds

 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: January 21, 2026
...
​State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoWeld1/9/20261/16/2026EA H5Canada gooseWild birdMorbidity/Mortality
ColoradoBoulder11/13/20251/13/2026EA H5Cackling gooseWild birdMorbidity/Mortality
ColoradoWeld1/5/20261/13/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoWeld1/7/20261/13/2026EA H5Great horned owlWild birdMorbidity/Mortality
ColoradoArapahoe1/7/20261/13/2026EA H5Cackling gooseWild birdMorbidity/Mortality
...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: January 28, 2026
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoArapahoe1/9/20261/22/2026EA H5Cooper's hawkWild birdMorbidity/Mortality
ColoradoLarimer1/13/20261/21/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoJefferson1/14/20261/21/2026EA H5Common ravenWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Northglenn Police Department ·

18h ·
** Update **
Currently, affected areas are Croke Reservoir, E.B. Rains Park and 112th/Huron area.
**Community Alert**
In recent days, Northglenn has responded to nearly a dozen suspected cases of Avian Influenza (bird flu) involving local wildlife, including geese and a great horned owl. We want to provide our community with important information and guidance.

Avian Influenza is a virus that naturally occurs in wild birds, especially waterfowl like geese and ducks. While the risk to people is low, the virus can be dangerous to birds and other animals.
Please DO NOT touch or interact with birds that are dead or acting abnormally.
Sick birds may appear lethargic, unable to fly, walking in circles or unusually unafraid of people. Keep pets away from sick or dead birds, as animals can become infected through contact.
If you see multiple dead birds or wildlife acting strangely, please call 303.280.7821 to report it and avoid the area.
For more information, visit CPW here:
1f449.png
https://cpw.state.co.us/.../cpw-reminds-public-seasonal...
Thank you for helping keep our community, pets and wildlife safe.​

https://www.facebook.com/search/top?q=northglenn co news
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: February 03, 2026

State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoAdams1/14/20261/30/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
ColoradoDenver1/22/20261/30/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds

 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: February 11, 2026
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
ColoradoLarimer2/3/20262/10/2026EA H5Goose (unidentified)Wild birdMorbidity/Mortality
ColoradoLarimer1/27/20262/10/2026EA H5Bald eagleWild birdMorbidity/Mortality

...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: February 24, 2026
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification
ColoradoBroomfield2/6/20262/19/2026EA H5Great horned owlWild bird
ColoradoWeld2/11/20262/19/2026EA H5Owl (unidentified)Wild bird
ColoradoLarimer2/13/20262/19/2026EA H5Great horned owlWild bird
ColoradoWeld2/12/20262/19/2026EA H5Goose (unidentified)Wild bird
ColoradoLarimer2/10/20262/17/2026EA H5Red-tailed hawkWild bird
ColoradoAdams2/4/20262/12/2026EA H5Goose (unidentified)Wild bird
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
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