• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

California - Avian influenza in wild birds 2024-2026

Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: August 06, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
CaliforniaAlameda11/26/20247/11/2025EA/AM H5N1Western sandpiperWild birdMorbidity/Mortality
CaliforniaMonterey11/13/20247/11/2025EA/AM H5N1Green-winged tealWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
image.png - Click image for larger version  Name:	image.png Views:	1 Size:	111.7 KB ID:	1022276

/https://en.wikipedia.org/wiki/Cameron_Park,_California
--------------------------------------------------------------------

Avian flu confirmed in Canada geese at Cameron Park Lake — local officials warn residents
...
Cris Alarcon by Cris Alarcon October 29, 2025 in News
...
CAMERON PARK, Calif. — Wildlife officials confirmed Wednesday that laboratory tests have detected avian influenza in Canada geese found at Cameron Park Lake, the latest local sign that the seasonal migration is bringing bird flu back to Northern California.
...
“In the past two weeks we have received two Canada goose carcasses from Cameron Park Lake, and the preliminary results show avian influenza,” CDFW wildlife staffer Peter Tira said in a news update. Officials said additional birds found ill in the area were euthanized to prevent undue suffering.
...
http://inedc.com/24/news/avian-flu-...ron-park-lake-local-officials-warn-residents/
----------------------------------------------------------------
Cameron Park Lake
...
10/29/2025 - Community Update: Confirmed Avian Influenza at Cameron Park Lake

The Cameron Park Community Services District (CPCSD) has been notified that necropsy results confirmed the presence of Avian Influenza as the cause of recent waterfowl deaths at Cameron Park Lake.

Prior to receiving these results, initial field assessments suggested the cause might be avian botulism or algae-related toxicity based on environmental observations. Out of an abundance of caution, on Thursday, October 23, the District installed warning signage around the lake to alert the community to potential hazards and to advise residents and visitors to avoid contact with lake water and wildlife.

Since that time, the District has continued to work closely with Sierra Wildlife Rescue, California Wildlife Encounters, and the California Department of Fish and Wildlife to monitor the situation and manage the response. Crews are conducting daily patrols to identify, remove, and safely dispose of affected birds to help prevent further spread of the virus.

Out of an abundance of caution, the community is asked to:

Stay out of the water and avoid contact with sick or deceased birds.
Do not touch or attempt to move wildlife, and report any sick or deceased birds to District staff or Animal Services.
While the risk to humans remains very low, the virus can spread through direct contact with infected birds or contaminated surfaces. These steps are being taken to protect the health of residents, pets, and local wildlife.

The District will continue to provide updates as more information becomes available.

For more information, please visit www.cameronpark.org or contact the District Office at (530) 677-2231.

Cameron Park Community Services District

https://www.cameronpark.org/cameron-park-lake-36cf6b3
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: November 04, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method​
CaliforniaSan Luis Obispo10/22/202510/28/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaEl Dorado10/22/202510/28/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaEl Dorado10/22/202510/28/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaSolano10/19/202510/27/2025EA H5Brown pelicanWild birdMorbidity/Mortality
CaliforniaTulare10/20/202510/27/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaTulare10/20/202510/27/2025EA H5Canada 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: November 12, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
CaliforniaVentura10/29/202511/6/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaVentura10/29/202511/6/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaVentura10/29/202511/6/2025EA H5Turkey vultureWild birdMorbidity/Mortality
CaliforniaEl Dorado10/29/202511/6/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaMerced10/20/202511/3/2025EA H5Redhead duckWild birdHunter harvest
CaliforniaMerced10/18/202511/3/2025EA H5Northern shovelerWild birdHunter harvest
CaliforniaMerced10/18/202511/3/2025EA H5Northern shovelerWild birdHunter harvest
CaliforniaMerced10/20/202511/3/2025EA H5Cinnamon tealWild birdHunter harvest
CaliforniaMerced10/20/202511/3/2025EA H5Cinnamon tealWild birdHunter harvest
CaliforniaMerced10/20/202511/3/2025EA H5Cinnamon tealWild birdHunter harvest
CaliforniaMerced10/20/202511/3/2025EA H5Ring-necked duckWild birdHunter harvest
CaliforniaMerced10/20/202511/3/2025EA H5MallardWild birdHunter harvest
CaliforniaMerced10/20/202511/3/2025EA H5American wigeonWild birdHunter harvest
​...

https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza/hpai-detections/wild-birds​
 
Media
Avian flu is sickening and killing birds in Northern California
November 17, 2025

Video here
Wildlife group confirms avian flu in Northern California ducks and geese
Nov 17, 2025 Updated 27 mins ago​


CHICO, Calif. - The Bidwell Wildlife Rehabilitation Group announced this week that avian flu has reached Northern California.

The group reported receiving accounts of birds, particularly geese and ducks, found in yards and public spaces, unable to fly.

Testing conducted with the Department of Fish and Wildlife confirmed the presence of avian flu, said the group.

There is no treatment or medication for avian flu, with only about 10% of birds recovering from the disease.

The group advises residents to leave any birds unable to fly alone and avoid touching or picking them up.

Additionally, they recommend keeping household pets inside and contacting local animal control to report the bird.

https://www.actionnewsnow.com/news/...cle_e378d528-2d9f-4334-92d5-88557efb50c0.html

 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: November 25, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification
CaliforniaSacramento11/5/202511/20/2025EA H5Turkey vultureWild bird
CaliforniaSacramento11/5/202511/20/2025EA H5Greater white-fronted gooseWild bird
CaliforniaSacramento11/5/202511/20/2025EA H5Peregrine falconWild bird
CaliforniaMarin11/5/202511/20/2025EA H5Great horned owlWild bird
CaliforniaMarin11/5/202511/20/2025EA H5Great horned owlWild bird
CaliforniaLos Angeles11/13/202511/20/2025EA H5Western gullWild bird
CaliforniaLos Angeles11/10/202511/20/2025EA H5Gull (unidentified)Wild bird
CaliforniaButte11/10/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/10/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/10/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/10/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/10/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/10/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/10/202511/18/2025EA H5GadwallWild bird
CaliforniaButte11/10/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/10/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/10/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/10/202511/18/2025EA H5Northern pintailWild bird
CaliforniaButte11/5/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/5/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/5/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/5/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/5/202511/18/2025EA H5Ring-necked duckWild bird
CaliforniaButte11/5/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/5/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/5/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/5/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/5/202511/18/2025EA H5American wigeonWild bird
CaliforniaButte11/5/202511/18/2025EA H5MallardWild bird
CaliforniaButte11/5/202511/18/2025EA H5GadwallWild bird
CaliforniaButte11/5/202511/18/2025EA H5Northern shovelerWild bird
CaliforniaButte11/5/202511/18/2025EA H5Northern shovelerWild bird
CaliforniaSonoma11/5/202511/18/2025EA H5N1Red-tailed hawkWild bird
CaliforniaMendocino11/5/202511/18/2025EA H5Canada gooseWild bird
CaliforniaSanta Barbara11/5/202511/18/2025EA H5Western gullWild bird
CaliforniaYolo10/29/202511/18/2025EA H5Northern shovelerWild bird
CaliforniaYolo10/29/202511/18/2025EA H5Northern shovelerWild bird
CaliforniaYolo10/29/202511/18/2025EA H5Green-winged tealWild bird
CaliforniaYolo10/29/202511/18/2025EA H5Green-winged tealWild bird
CaliforniaYolo10/29/202511/18/2025EA H5Northern pintailWild bird
CaliforniaYolo10/29/202511/18/2025EA H5Northern pintailWild bird
CaliforniaYolo10/29/202511/18/2025EA H5Northern pintailWild bird
CaliforniaYolo10/29/202511/18/2025EA H5American wigeonWild bird
CaliforniaYolo10/25/202511/18/2025EA H5Cinnamon tealWild bird
CaliforniaYolo10/25/202511/18/2025EA H5American wigeonWild bird
CaliforniaYolo10/25/202511/18/2025EA H5GadwallWild bird
CaliforniaYolo10/25/202511/18/2025EA H5GadwallWild bird
CaliforniaYolo10/25/202511/18/2025EA H5Green-winged tealWild bird
CaliforniaYolo10/25/202511/18/2025EA H5Ring-necked duckWild 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 02, 2025
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
CaliforniaButte11/1/202511/24/2025EA H5Ring-necked duckWild birdHunter harvest
CaliforniaSan Diego11/9/202511/21/2025EA H5Western gullWild birdMorbidity/Mortality
CaliforniaSan Diego11/9/202511/21/2025EA H5Western gullWild 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
CaliforniaSan Francisco11/21/202512/5/2025EA H5Western gullWild birdMorbidity/Mortality
CaliforniaSan Francisco11/21/202512/5/2025EA H5Western gullWild birdMorbidity/Mortality
CaliforniaYolo11/22/202512/4/2025EA H5Western gullWild birdMorbidity/Mortality
CaliforniaYolo11/8/202512/2/2025EA H5GadwallWild birdHunter harvest
CaliforniaYolo11/8/202512/2/2025EA H5Northern shovelerWild birdHunter harvest
CaliforniaYolo11/8/202512/2/2025EA H5Northern pintailWild birdHunter harvest
CaliforniaYolo11/8/202512/2/2025EA H5Lesser scaupWild birdHunter harvest
CaliforniaYolo11/8/202512/2/2025EA H5Northern shovelerWild birdHunter harvest
CaliforniaYolo11/8/202512/2/2025EA H5Northern shovelerWild birdHunter harvest
CaliforniaMonterey11/20/202512/1/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaMonterey11/20/202512/1/2025EA H5Turkey vultureWild birdMorbidity/Mortality
CaliforniaMonterey11/20/202512/1/2025EA H5N1Western gullWild birdMorbidity/Mortality
CaliforniaMonterey11/20/202512/1/2025EA H5N1Western gullWild birdMorbidity/Mortality
CaliforniaMonterey11/20/202512/1/2025EA H5Western gullWild birdMorbidity/Mortality
CaliforniaContra Costa11/20/202512/1/2025EA H5Western gullWild birdMorbidity/Mortality
CaliforniaContra Costa11/20/202512/1/2025EA H5GadwallWild birdMorbidity/Mortality
CaliforniaContra Costa11/20/202512/1/2025EA H5Turkey vultureWild birdMorbidity/Mortality
CaliforniaSacramento11/20/202512/1/2025EA H5Peregrine falconWild birdMorbidity/Mortality
CaliforniaContra Costa11/20/202512/1/2025EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaSolano11/20/202512/1/2025EA H5Mute swanWild birdMorbidity/Mortality
CaliforniaContra Costa11/20/202512/1/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaSacramento11/20/202512/1/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaYolo10/27/202512/1/2025EA H5N1Western gullWild birdMorbidity/Mortality
CaliforniaSanta Clara11/20/202512/1/2025EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaSolano11/20/202512/1/2025EA H5N1Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaSolano11/20/202512/1/2025EA H5Great horned owlWild birdMorbidity/Mortality
CaliforniaSolano11/20/202512/1/2025EA H5Mute swanWild birdMorbidity/Mortality
CaliforniaLos Angeles11/14/202511/28/2025EA H5California gullWild birdMorbidity/Mortality
CaliforniaLos Angeles11/21/202511/28/2025EA H5Western gullWild 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
CaliforniaYuba12/8/202512/17/2025EA H5Snow gooseWild bird
CaliforniaSan Mateo11/21/202512/17/2025EA H5N1Western gullWild bird
CaliforniaNapa11/26/202512/17/2025EA H5Great horned owlWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5N1California gullWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5Western gullWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5Western gullWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5Western gullWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5Glaucous gullWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5Glaucous gullWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5N1Western gullWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5Great horned owlWild bird
CaliforniaSan Mateo12/3/202512/15/2025EA H5N1Brown pelicanWild bird
CaliforniaSanta Cruz12/3/202512/15/2025EA H5Western gullWild bird
CaliforniaYolo11/26/202512/15/2025EA H5Northern harrierWild bird
CaliforniaVentura11/26/202512/15/2025EA H5Red-tailed hawkWild bird
CaliforniaNapa11/26/202512/15/2025EA H5Barn owlWild bird
CaliforniaSan Mateo11/26/202512/15/2025EA H5Canada gooseWild 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
CaliforniaSolano12/6/202512/23/2025EA H5Green-winged tealWild birdHunter harvest
CaliforniaSolano12/6/202512/23/2025EA H5Green-winged tealWild birdHunter harvest
CaliforniaButte12/3/202512/23/2025EA H5Wood duckWild birdHunter harvest
CaliforniaYolo12/17/202512/23/2025EA H5Great horned owlWild birdMorbidity/Mortality
CaliforniaSan Diego12/1/202512/23/2025EA H5American white pelicanWild birdMorbidity/Mortality
CaliforniaUnknownUnknown12/23/2025EA H5Western gullWild birdMorbidity/Mortality
CaliforniaUnknownUnknown12/23/2025EA H5Western gullWild birdMorbidity/Mortality

...

https://www.aphis.usda.gov/livestoc...n/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
CaliforniaContra Costa12/18/20251/2/2026EA H5Glaucous-winged gullWild bird
CaliforniaSacramento12/17/20251/2/2026EA H5Ross's gooseWild bird
CaliforniaSan Francisco12/17/20251/2/2026EA H5N1SanderlingWild bird
CaliforniaSan Mateo12/17/20251/2/2026EA H5N1Black-necked stiltWild bird
CaliforniaSan Mateo12/17/20251/2/2026EA H5Red-tailed hawkWild bird
CaliforniaSolano12/19/20251/2/2026EA H5Canada gooseWild bird
CaliforniaSolano12/19/20251/2/2026EA H5SanderlingWild bird
CaliforniaSan Diego12/17/20251/2/2026EA H5Canada gooseWild bird
CaliforniaSan Diego12/17/20251/2/2026EA H5Canada gooseWild bird
CaliforniaAlameda12/24/20251/2/2026EA H5Great horned owlWild bird
CaliforniaSan Diego12/15/202512/30/2025EA H5Cooper's hawkWild bird
CaliforniaSan Diego12/15/202512/30/2025EA H5Canada gooseWild bird
CaliforniaMarin12/10/202512/30/2025EA H5Glaucous gullWild bird
CaliforniaYolo12/10/202512/30/2025EA H5Red-tailed hawkWild bird
CaliforniaSanta Barbara12/10/202512/30/2025EA H5N1Turkey vultureWild bird
CaliforniaSanta Barbara12/10/202512/30/2025EA H5Glaucous gullWild bird
CaliforniaSanta Barbara12/10/202512/30/2025EA H5N1Bonaparte's gullWild bird
CaliforniaInyo12/10/202512/30/2025EA H5Great horned owlWild bird
CaliforniaVentura12/17/202512/30/2025EA H5Bonaparte's gullWild 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
CaliforniaSan Diego12/25/20251/8/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaSonoma12/23/20251/5/2026EA H5N1Common ravenWild birdMorbidity/Mortality
CaliforniaSonoma12/23/20251/5/2026EA H5Turkey vultureWild birdMorbidity/Mortality
CaliforniaSonoma12/23/20251/5/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaSonoma12/23/20251/5/2026EA H5N1Black turnstoneWild birdMorbidity/Mortality
CaliforniaSonoma12/23/20251/5/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaMonterey12/17/20251/5/2026EA H5N1Great horned owlWild birdMorbidity/Mortality
CaliforniaMonterey12/17/20251/5/2026EA H5N1Great horned owlWild birdMorbidity/Mortality
CaliforniaMonterey12/17/20251/5/2026EA H5N1Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaYolo12/26/20251/5/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaSan Diego12/17/20251/5/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaSan Diego12/17/20251/5/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaSan Diego12/17/20251/5/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaSan Benito12/17/20251/5/2026EA H5N1Turkey vultureWild birdMorbidity/Mortality
CaliforniaAlameda12/18/20251/5/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaAlameda12/18/20251/5/2026EA H5Great horned owlWild birdMorbidity/Mortality
CaliforniaAlameda12/18/20251/5/2026EA H5Black-necked stiltWild birdMorbidity/Mortality
CaliforniaAlameda12/18/20251/5/2026EA H5N1Turkey vultureWild birdMorbidity/Mortality
CaliforniaSanta Clara12/18/20251/5/2026EA H5Black-necked stiltWild birdMorbidity/Mortality
CaliforniaSanta Clara12/18/20251/5/2026EA H5WilletWild birdMorbidity/Mortality
CaliforniaSanta Clara12/18/20251/5/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaSanta Clara12/18/20251/5/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaSanta Clara12/18/20251/5/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaContra Costa12/18/20251/5/2026EA H5American crowWild birdMorbidity/Mortality
CaliforniaSolano12/19/20251/5/2026EA H5Snow gooseWild birdMorbidity/Mortality
CaliforniaSolano12/19/20251/5/2026EA H5Snow gooseWild birdMorbidity/Mortality
CaliforniaSan FranciscoUnknown1/5/2026EA H5Western gullWild birdMorbidity/Mortality
CaliforniaSan FranciscoUnknown1/5/2026EA H5N1Western gullWild birdMorbidity/Mortality
CaliforniaSan FranciscoUnknown1/5/2026EA H5N1Western gullWild 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
CaliforniaSan Diego11/28/20251/16/2026EA H5American white pelicanWild birdMorbidity/Mortality
CaliforniaButte12/10/20251/12/2026EA H5GadwallWild birdHunter harvest
CaliforniaSolano12/13/20251/12/2026EA H5Green-winged tealWild birdHunter harvest
​...

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
CaliforniaSan Mateo1/7/20261/22/2026EA H5N1Western gullWild birdMorbidity/Mortality
CaliforniaMonterey1/14/20261/22/2026EA H5Glaucous gullWild birdMorbidity/Mortality
CaliforniaColusa1/14/20261/22/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaColusa1/14/20261/22/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaColusa1/14/20261/22/2026EA H5Great horned owlWild birdMorbidity/Mortality
CaliforniaColusa1/14/20261/22/2026EA H5Snow gooseWild birdMorbidity/Mortality
CaliforniaInyo1/14/20261/22/2026EA H5Common ravenWild birdMorbidity/Mortality
CaliforniaSacramento1/14/20261/22/2026EA H5Snow gooseWild birdMorbidity/Mortality
CaliforniaSan DiegoUnknown1/21/2026EA/AM H5N1Western gullWild birdMorbidity/Mortality
CaliforniaSan DiegoUnknown1/21/2026EA/AM H5N1Western gullWild birdMorbidity/Mortality
CaliforniaSan Diego12/9/20251/21/2026EA/AM H5N1Western gullWild birdMorbidity/Mortality
CaliforniaSan Diego12/14/20251/21/2026EA/AM H5N1Cooper's hawkWild birdMorbidity/Mortality
CaliforniaButte12/31/20251/20/2026EA H5GadwallWild birdHunter harvest
CaliforniaButte12/31/20251/20/2026EA H5GadwallWild birdHunter harvest
CaliforniaButte12/31/20251/20/2026EA H5Northern shovelerWild birdHunter harvest
CaliforniaButte12/31/20251/20/2026EA H5Northern shovelerWild birdHunter harvest
CaliforniaButte12/17/20251/20/2026EA H5Ring-necked duckWild birdHunter harvest
​...

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 03, 2026

State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
CaliforniaSolano1/3/20261/26/2026EA H5American wigeonWild birdHunter harvest
CaliforniaSan Diego1/9/20261/26/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaSan Diego1/8/20261/26/2026EA H5Brown pelicanWild birdMorbidity/Mortality
CaliforniaSan Diego1/8/20261/26/2026EA H5Great-tailed grackleWild birdMorbidity/Mortality
CaliforniaInyo1/14/20261/23/2026EA H5Common ravenWild 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
CaliforniaKern1/14/20262/10/2026EA H5Green-winged tealWild birdHunter harvest
CaliforniaButte1/17/20262/9/2026EA H5Northern shovelerWild birdHunter harvest
CaliforniaContra Costa1/25/20262/4/2026EA H5Snow gooseWild birdMorbidity/Mortality
CaliforniaAlamedaUnknown2/3/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaAlamedaUnknown2/3/2026EA H5Ross's gooseWild birdMorbidity/Mortality
CaliforniaAlameda1/21/20262/3/2026EA H5N1Great horned owlWild birdMorbidity/Mortality
CaliforniaAlameda1/21/20262/3/2026EA H5N1Turkey vultureWild birdMorbidity/Mortality
CaliforniaAlameda1/21/20262/3/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaMendocino1/21/20262/2/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaMendocino1/21/20262/2/2026EA H5Canada gooseWild birdMorbidity/Mortality
CaliforniaColusa1/15/20262/2/2026EA 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: February 24, 2026
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification
CaliforniaSan Diego12/22/20252/20/2026EA H5Canada gooseWild bird
CaliforniaYolo2/11/20262/20/2026EA H5Owl (unidentified)Wild bird
CaliforniaLos Angeles2/4/20262/17/2026EA H5N1Turkey vultureWild bird
CaliforniaSan Luis Obispo2/4/20262/17/2026EA H5American white pelicanWild bird
CaliforniaSan Luis Obispo2/4/20262/17/2026EA H5Turkey vultureWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaVentura1/28/20262/11/2026EA H5California gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Herring gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Cormorant (unidentified)Wild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
CaliforniaSan Francisco12/19/20252/11/2026EA H5Western gullWild bird
​...

https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
CaliforniaImperial2/18/20262/27/2026EA H5Ring-billed gullWild birdMorbidity/Mortality
CaliforniaSolano2/18/20262/27/2026EA H5Red-tailed hawkWild birdMorbidity/Mortality
CaliforniaYolo2/5/20262/24/2026EA H5Snow gooseWild birdMorbidity/Mortality
CaliforniaSacramento2/6/20262/24/2026EA H5Canada gooseWild birdMorbidity/Mortality
​...

https://www.aphis.usda.gov/livestoc...-influenza/hpai-detections/wild-birds?page=1​
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: March 18, 2026
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method
CaliforniaSan Mateo3/2/20263/13/2026EA H5N1Western gullWild birdMorbidity/Mortality
CaliforniaSan Mateo3/2/20263/13/2026EA H5N1Western gullWild birdMorbidity/Mortality
...

https://www.aphis.usda.gov/livestoc...n-influenza/hpai-detections/wild-birds?page=1
 
Back
Top