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California - Avian influenza in wild birds 2024-2026

Shiloh

Editor, Senior Moderator
Source: https://ktla.com/news/local-news/3-cases-of-bird-flu-confirmed-in-l-a-county/

3 cases of bird flu confirmed in L.A. County
by: Iman Palm
Posted: Jan 25, 2024 / 05:11 PM PST
Updated: Jan 25, 2024 / 05:11 PM PST

Three cases of avian flu have been confirmed in Los Angeles County, public health officials announced on X, formally known as Twitter.

The National Veterinary Services Laboratory confirmed that a raven in Eagle Rock, a Western Gull in El Segundo, and a Canada Goose in Alhambra tested positive for the virus. So far, the virus hasn’t been found in any domesticated or wild mammals.

Thirty cases have been reported between October 2022 and April 2023, according to public health officials.​..
 
United States of America - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 104


GENERAL INFORMATION

COUNTRY/TERRITORY OR ZONE
ZONE

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
Listed disease

EVENT ID
4247

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2021/12/30

REASON FOR NOTIFICATION
Recurrence of an eradicated disease

DATE OF LAST OCCURRENCE
2017/03/27

CONFIRMATION DATE
2022/01/13

EVENT STATUS
On-going

END DATE - SELF-DECLARATION

NO REPORT INFORMATION

REPORT NUMBER
Follow-up report 104

REPORT ID
FUR_165666

REPORT REFERENCE - REPORT DATE
2024/02/15

REPORT STATUS
Validated

NO EVOLUTION REPORT

EPIDEMIOLOGY

SOURCE OF EVENT OR ORIGIN OF INFECTION
  • migratory waterfowl
EPIDEMIOLOGICAL COMMENTS
Highly pathogenic avian influenza (HPAI) H5N1 Eurasian lineage goose/Guangdong clade 2.3.4.4b was confirmed on the following non-poultry premises: Idaho (ID) Owyhee County and Twin Falls County. State officials have quarantined both affected premises. Depopulation and disposal were completed 8 February 2024 on the Owyhee County affected premises. Pennsylvania (PA) Schuylkill County. State officials have quarantined the affected premises. Depopulation was completed on 08 Feb 2024. Disposal was completed on 12 Feb 2024. Cleaning was completed on 10 Feb 2024. Highly pathogenic avian influenza (HPAI) H5N1 Eurasian lineage goose/Guangdong clade 2.3.4.4b was confirmed in a black-bellied plover (Pluvialis squatarola) in California (CA). Affected population counts are based on estimated inventories from the date the outbreak was first reported to WOAH. According to article 10.4.1.4 of the Terrestrial Animal Health Code, Member Country should not impose bans on the international trade of poultry commodities in response to notification of infection with any Influenza A viruses in birds other than poultry. For updated information about HPAI testing of wild birds in the United States, see: https://www.aphis.usda.gov/aphis/ou...e-information/avian/avian-influenza/2022-hpai.

QUANTITATIVE DATA SUMMARY

MEASURING UNIT
Animal

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Cooper's Hawk (WILD)NEW------TOTAL------ Sharp-shinned Hawk (WILD)NEW------TOTAL------ Western Grebe (WILD)NEW------TOTAL------ Red-winged Blackbird (WILD)NEW------TOTAL------ Wood Duck (WILD)NEW------TOTAL------ Roseate Spoonbill (WILD)NEW------TOTAL------ Egyptian Goose (WILD)NEW------TOTAL------ Brazilian Teal (WILD)NEW------TOTAL------ Northern Pintail (WILD)NEW------TOTAL------ American wigeon (WILD)NEW------TOTAL------ Green-winged Teal (WILD)NEW------TOTAL------ Northern Shoveler (WILD)NEW------TOTAL------ Cinnamon Teal (WILD)NEW------TOTAL------ Blue winged teal (WILD)NEW------TOTAL------ Baikal Teal (WILD)NEW------TOTAL------ Mottled Duck (WILD)NEW------TOTAL------ Mallard (WILD)NEW------TOTAL10-64-- American Black Duck (WILD)NEW------TOTAL------ Gadwall (WILD)NEW------TOTAL------ Anatidae (unidentified) (WILD)NEW------TOTAL------ Greater White-fronted Goose (WILD)NEW------TOTAL------ Snow Goose (WILD)NEW------TOTAL------ Swan Goose (WILD)NEW------TOTAL------ Lesser white-fronted goose (WILD)NEW------TOTAL------ Ross's Goose (WILD)NEW------TOTAL------ Golden Eagle (WILD)NEW------TOTAL------ Great Egret (WILD)NEW------TOTAL------ Great Blue Heron (WILD)NEW------TOTAL------ Ardeidae (unidentified) (WILD)NEW------TOTAL------ Short-eared Owl (WILD)NEW------TOTAL------ Long-eared Owl (WILD)NEW------TOTAL------ Lesser Scaup (WILD)NEW------TOTAL------ Redhead (WILD)NEW------TOTAL------ Greater Scaup (WILD)NEW------TOTAL------ Canvasback (WILD)NEW------TOTAL------ Gray Crowned-Crane (WILD)NEW------TOTAL------ Birds (DOMESTIC)NEW58-4310--TOTAL3237639750322830-- Ruffed grouse (WILD)NEW------TOTAL------ Brent Goose (WILD)NEW------TOTAL------ Canada Goose (WILD)NEW------TOTAL------ Cackling Goose (WILD)NEW------TOTAL------ Red-breasted Goose (WILD)NEW------TOTAL------ Snowy Owl (WILD)NEW------TOTAL------ Great Horned owl (WILD)NEW------TOTAL------ Bufflehead (WILD)NEW------TOTAL------ Common Goldeneye (WILD)NEW------TOTAL------ Red-tailed Hawk (WILD)NEW------TOTAL------ Rough-legged Hawk (WILD)NEW------TOTAL------ Red-shouldered Hawk (WILD)NEW------TOTAL------ Broad-winged Hawk (WILD)NEW------TOTAL------ Ferruginous Hawk (WILD)NEW------TOTAL------ Swainson's Hawk (WILD)NEW------TOTAL------ Muscovy Duck (WILD)NEW------TOTAL------ Sanderling (WILD)NEW------TOTAL------ Dunlin (WILD)NEW------TOTAL------ California Quail (WILD)NEW------TOTAL------ Crested Caracara (WILD)NEW------TOTAL------ Turkey Vulture (WILD)NEW------TOTAL------ Greater Sage-Grouse (WILD)NEW------TOTAL------ Northern Harrier (WILD)NEW------TOTAL------ Black Vulture (WILD)NEW------TOTAL------ Corvidae (unidentified) (WILD)NEW------TOTAL------ American crow (WILD)NEW------TOTAL------ Common Raven (WILD)NEW------TOTAL------ Black Swan (WILD)NEW------TOTAL------ Trumpeter Swan (WILD)NEW------TOTAL------ Tundra Swan (WILD)NEW------TOTAL------ Mute Swan (WILD)NEW------TOTAL------ Emu (WILD)NEW------TOTAL------ Snowy Egret (WILD)NEW------TOTAL------ Estrildidae (unidentified) (WILD)NEW------TOTAL------ Scarlet Ibis (WILD)NEW------TOTAL--1--- Merlin (WILD)NEW------TOTAL------ Prairie Falcon (WILD)NEW------TOTAL------ Peregrin falcon (WILD)NEW------TOTAL------ American Kestrel (WILD)NEW------TOTAL------ American Coot (WILD)NEW------TOTAL------ Northern fulmar (WILD)NEW------TOTAL------ Common Loon (WILD)NEW------TOTAL------ Sandhill Crane (WILD)NEW------TOTAL------ Bald Eagle (WILD)NEW------TOTAL------ Caspian Tern (WILD)NEW------TOTAL------ Dark-eyed Junco (WILD)NEW------TOTAL------ Herring Gull (WILD)NEW------TOTAL------ Laughing Gull (WILD)NEW------TOTAL------ California Gull (WILD)NEW------TOTAL------ Ring-billed gull (WILD)NEW------TOTAL------ Glaucous-winged Gull (WILD)NEW------TOTAL------ Glaucous Gull (WILD)NEW------TOTAL------ Great black-backed Gull (WILD)NEW------TOTAL------ Western Gull (WILD)NEW------TOTAL------ Bonaparte's Gull (WILD)NEW------TOTAL------ Thayer's Gull (WILD)NEW------TOTAL------ Eastern Screech-Owl (WILD)NEW------TOTAL------ White-winged Scoter (WILD)NEW------TOTAL------ Black Scoter (WILD)NEW------TOTAL------ Wild turkey (WILD)NEW------TOTAL------ Smew (WILD)NEW------TOTAL------ Northern Gannet (WILD)NEW------TOTAL------ Black-crowned Night-Heron (WILD)NEW------TOTAL------ Ruddy Duck (WILD)NEW------TOTAL------ Osprey (WILD)NEW------TOTAL------ Harris's hawk (WILD)NEW------TOTAL------ Parulidae (unidentified) (WILD)NEW------TOTAL------ House Sparrow (WILD)NEW------TOTAL------ Dalmatian pelican (WILD)NEW------TOTAL------ American White Pelican (WILD)NEW------TOTAL------ Brown Pelican (WILD)NEW------TOTAL------ Phalacrocoracidae (unidentified) (WILD)NEW------TOTAL------ Double-crested cormorant (WILD)NEW------TOTAL------ Phasianidae (unidentified) (WILD)NEW------TOTAL650-334166-- Chilean Flamingo (WILD)NEW------TOTAL------ Lesser flamingo (WILD)NEW------TOTAL------ Black-billed Magpie (WILD)NEW------TOTAL------ White-faced Ibis (WILD)NEW------TOTAL------ Glossy Ibis (WILD)NEW------TOTAL-1---- Grey Plover (WILD)NEW------TOTAL------ Horned Grebe (WILD)NEW------TOTAL------ Red-necked grebe (WILD)NEW------TOTAL------ Black-necked Grebe (WILD)NEW------TOTAL------ Pied-billed Grebe (WILD)NEW------TOTAL------ Psittacidae (unidentified) (WILD)NEW------TOTAL------ Common Grackle (WILD)NEW------TOTAL------ Greater Rhea (WILD)NEW------TOTAL------ Black-legged Kittiwake (WILD)NEW------TOTAL------ Common Eider (WILD)NEW------TOTAL------ Spheniscidae (unidentified) (WILD)NEW------TOTAL------ Common Tern (WILD)NEW------TOTAL------ Arctic Tern (WILD)NEW------TOTAL------ Barred Owl (WILD)NEW------TOTAL------ Royal Tern (WILD)NEW------TOTAL------ Sandwich Tern (WILD)NEW------TOTAL------ American Robin (WILD)NEW------TOTAL------ Barn Owl (Common Barn-Owl) (WILD)NEW------TOTAL------ Common Murre (WILD)NEW------TOTAL------ Arctic Jaeger (WILD)NEW------TOTAL------ Hooded Merganser (WILD)NEW------TOTAL------ Fish crow (WILD)NEW------TOTAL------ Neotropic cormorant (WILD)NEW------TOTAL------ Western screech owl (WILD)NEW------TOTAL------ Short-billed Gull (WILD)NEW------TOTAL------ Wood Stork (WILD)NEW------TOTAL------ Sabine's Gull (WILD)NEW------TOTAL------ Tree swallow (WILD)NEW------TOTAL------ Black Skimmer (WILD)NEW------TOTAL------ Forster's Tern (WILD)NEW------TOTAL------ Puna Teal (WILD)NEW------TOTAL------ Barrow's Goldeneye (WILD)NEW------TOTAL------ Willet (WILD)NEW------TOTAL------ Snowy plover (WILD)NEW------TOTAL------ Scaly-sided Merganser (WILD)NEW------TOTAL------ Baer's Pochard (WILD)NEW------TOTAL------ Fulvous Whistling Duck (WILD)NEW------TOTAL------ Great-tailed Grackle (WILD)NEW------TOTAL------ Pacific Loon (WILD)NEW------TOTAL------ Red-necked Phalarope (WILD)NEW------TOTAL------ Black Turnstone (WILD)NEW------TOTAL------ California condor (WILD)NEW------TOTAL--17--- Brandt's Cormorant (WILD)NEW------TOTAL------ Short-tailed shearwater (WILD)NEW------TOTAL------ King Vulture (WILD)NEW------TOTAL--1--- Plush-crested Jay (WILD)NEW------TOTAL--1--- All speciesNEW58-4310--TOTAL3303640786323000--

DIAGNOSTIC DETAILS

CLINICAL SIGNS
YES

METHOD OF DIAGNOSTIC
Diagnostic test, Clinical
Gene sequencingNational Veterinary Services Laboratories (NVSL), Ames, IowaBlack-necked Grebe,Western Grebe,Ruddy Duck,Rough-legged Hawk,Baer's Pochard,Sharp-shinned Hawk,Turkey Vulture,Great black-backed Gull,Northern Gannet,Wood Duck,Greater Sage-Grouse,Brazilian Teal,Harris's hawk,Red-winged Blackbird,Dunlin,Dalmatian pelican,Lesser flamingo,Roseate Spoonbill,Common Goldeneye,Osprey,Egyptian Goose,Northern Harrier,House Sparrow,Northern Pintail,Corvidae (unidentified),Parulidae (unidentified),American wigeon,Common Raven,American White Pelican,Blue winged teal,Chilean Flamingo,American crow,Great-tailed Grackle,Green-winged Teal,Mute Swan,Black-billed Magpie,Northern Shoveler,Black Swan,White-faced Ibis,Ferruginous Hawk,Mallard,Baikal Teal,Emu,Double-crested cormorant,Trumpeter Swan,Gadwall,Brown Pelican,Mottled Duck,Cackling Goose,Tundra Swan,Phasianidae (unidentified),Cinnamon Teal,Crested Caracara,Prairie Falcon,Glossy Ibis,American Black Duck,Estrildidae (unidentified),Herring Gull,Red-necked grebe,Red-necked Phalarope,Snow Goose,Snowy Egret,Horned Grebe,Lesser white-fronted goose,Peregrin falcon,Ross's Goose,Black Vulture,Merlin,Common Grackle,Great Blue Heron,American Coot,Spheniscidae (unidentified),Ardeidae (unidentified),Long-eared Owl,Common Loon,Greater Rhea,Swan Goose,Great Egret,Northern fulmar,Arctic Tern,Redhead,American Kestrel,Common Eider,Short-eared Owl,Bald Eagle,Common Tern,Golden Eagle,Canada Goose,Sandhill Crane,Phalacrocoracidae (unidentified),Brent Goose,Sandwich Tern,Caspian Tern,Psittacidae (unidentified),Hooded Merganser,Birds,Dark-eyed Junco,Pied-billed Grebe,Gray Crowned-Crane,Arctic Jaeger,Laughing Gull,Barred Owl,American Robin,Western screech owl ,Ruffed grouse,Glaucous Gull,Wood Stork,Puna Teal,Greater Scaup,Glaucous-winged Gull,Neotropic cormorant ,Willet,Sabine's Gull,Red-breasted Goose,Western Gull,Short-billed Gull,Fulvous Whistling Duck,Snowy Owl,California Gull,Black Skimmer,Tree swallow ,Bufflehead,Ring-billed gull,Lesser Scaup,Snowy plover,Royal Tern,Pacific Loon,Barn Owl (Common Barn-Owl),Great Horned owl,Wild turkey,Fish crow,Brandt's Cormorant,Red-shouldered Hawk,Black-crowned Night-Heron,Black-legged Kittiwake,White-winged Scoter,Red-tailed Hawk,Scaly-sided Merganser,Thayer's Gull,Forster's Tern,Swainson's Hawk,Bonaparte's Gull,Eastern Screech-Owl,Barrow's Goldeneye,Greater White-fronted Goose,Black Scoter,Broad-winged Hawk,Muscovy Duck,Black Turnstone,Anatidae (unidentified),Cooper's Hawk,Sanderling,California condor,Smew,Short-tailed shearwater,Common Murre,Canvasback,King Vulture,Scarlet Ibis,Plush-crested Jay,California Quail,Grey Plover6492022/01/162024/02/12Positive
Real-time reverse transcription polymerase chain reaction (rRT-PCR)National Veterinary Services Laboratories (NVSL), Ames, IowaNorthern Pintail,Sanderling,Black Scoter,Harris's hawk,Wood Duck,Ruddy Duck,Black-necked Grebe,Red-shouldered Hawk,Greater White-fronted Goose,Cinnamon Teal,Pied-billed Grebe,Mottled Duck,Broad-winged Hawk,Northern Gannet,Smew,Blue winged teal,Turkey Vulture,Black-billed Magpie,Black-crowned Night-Heron,Black-legged Kittiwake,Crested Caracara,Green-winged Teal,Osprey,Arctic Jaeger,Northern Shoveler,American crow,Thayer's Gull,Baikal Teal,Barred Owl,Tree swallow ,Dalmatian pelican,Black Vulture,American Black Duck,Corvidae (unidentified),Phasianidae (unidentified),Short-billed Gull,Anatidae (unidentified),House Sparrow,Northern Harrier,Puna Teal,Mallard,White-faced Ibis,Forster's Tern,Black Swan,Snow Goose,Common Raven,Sandwich Tern,Parulidae (unidentified),Gadwall,Psittacidae (unidentified),Emu,Fish crow,Great Egret,Ferruginous Hawk,Mute Swan,Phalacrocoracidae (unidentified),Royal Tern,Short-eared Owl,Snowy Egret,American Robin,Sabine's Gull,Golden Eagle,Tundra Swan,Great Blue Heron,Neotropic cormorant ,Hooded Merganser,Trumpeter Swan,Common Eider,Scaly-sided Merganser,Long-eared Owl,Merlin,Arctic Tern,Barrow's Goldeneye,Peregrin falcon,Lesser white-fronted goose,Snowy plover,Ardeidae (unidentified),American Coot,Horned Grebe,Western screech owl ,Baer's Pochard,Ross's Goose,Northern fulmar,Black Skimmer,Pacific Loon,Lesser Scaup,Estrildidae (unidentified),Wood Stork,Great-tailed Grackle,American Kestrel,Gray Crowned-Crane,California condor,Red-necked Phalarope,Greater Scaup,Dark-eyed Junco,Fulvous Whistling Duck,Redhead,Laughing Gull,Birds,Brent Goose,American wigeon,Prairie Falcon,Swan Goose,Greater Sage-Grouse,Bald Eagle,Ruffed grouse,Willet,Canada Goose,Double-crested cormorant,Caspian Tern,Chilean Flamingo,Herring Gull,Common Loon,Great Horned owl,Brandt's Cormorant,Red-breasted Goose,California Gull,Common Grackle,Black Turnstone,Barn Owl (Common Barn-Owl),Bufflehead,Glaucous Gull,American White Pelican,Red-tailed Hawk,Ring-billed gull,Spheniscidae (unidentified),Western Grebe,Sandhill Crane,Rough-legged Hawk,Greater Rhea,Cooper's Hawk,Snowy Owl,Glaucous-winged Gull,Sharp-shinned Hawk,Lesser flamingo,Cackling Goose,Bonaparte's Gull,Red-necked grebe,Red-winged Blackbird,Common Goldeneye,Western Gull,Glossy Ibis,Roseate Spoonbill,Eastern Screech-Owl,Muscovy Duck,Brown Pelican,Brazilian Teal,Dunlin,Great black-backed Gull,Egyptian Goose,Common Tern,Swainson's Hawk,Wild turkey,White-winged Scoter,Short-tailed shearwater,Common Murre,Canvasback,Scarlet Ibis,Plush-crested Jay,King Vulture,Grey Plover,California Quail6492022/01/052024/02/12Positive
https://wahis.woah.org/#/in-review/4247
 
United States of America - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 107


GENERAL INFORMATION

COUNTRY/TERRITORY OR ZONE
ZONE

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
Listed disease

EVENT ID
4247

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2021/12/30

REASON FOR NOTIFICATION
Recurrence of an eradicated disease

DATE OF LAST OCCURRENCE
2017/03/27

CONFIRMATION DATE
2022/01/13

EVENT STATUS
On-going

END DATE- SELF-DECLARATION

NO REPORT INFORMATION

REPORT NUMBER
Follow-up report 107

REPORT ID
FUR_166243

REPORT REFERENCE- REPORT DATE
2024/03/07

REPORT STATUS
Validated

NO EVOLUTION REPORT

EPIDEMIOLOGY

SOURCE OF EVENT OR ORIGIN OF INFECTION
  • migratory waterfowl
EPIDEMIOLOGICAL COMMENTS
Highly pathogenic avian influenza (HPAI) H5N1 Eurasian lineage goose/Guangdong clade 2.3.4.4b was confirmed in a captive wild black-necked swan (Cygnus melancoryphus) in Florida (FL). Mitigations were completed on the following previously reported HPAI affected premises: New York (NY) Monroe County. Depopulation and disposal were completed 01 Mar 2024 on Monroe 02. Affected population counts are based on estimated inventories from the date the outbreak was first reported to WOAH. According to article 10.4.1.4 of the Terrestrial Animal Health Code, Member Country should not impose bans on the international trade of poultry commodities in response to notification of infection with any Influenza A viruses in birds other than poultry. For updated information about HPAI testing of wild birds in the United States, see: https://www.aphis.usda.gov/aphis/ou...e-information/avian/avian-influenza/2022-hpai.

QUANTITATIVE DATA SUMMARY

MEASURING UNIT
Animal

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Cooper's Hawk (WILD)NEW------TOTAL------ Sharp-shinned Hawk (WILD)NEW------TOTAL------ Western Grebe (WILD)NEW------TOTAL------ Red-winged Blackbird (WILD)NEW------TOTAL------ Wood Duck (WILD)NEW------TOTAL------ Roseate Spoonbill (WILD)NEW------TOTAL------ Egyptian Goose (WILD)NEW------TOTAL------ Brazilian Teal (WILD)NEW------TOTAL------ Northern Pintail (WILD)NEW------TOTAL------ American wigeon (WILD)NEW------TOTAL------ Green-winged Teal (WILD)NEW------TOTAL------ Northern Shoveler (WILD)NEW------TOTAL------ Cinnamon Teal (WILD)NEW------TOTAL------ Blue winged teal (WILD)NEW------TOTAL------ Baikal Teal (WILD)NEW------TOTAL------ Mottled Duck (WILD)NEW------TOTAL------ Mallard (WILD)NEW------TOTAL10-64-- American Black Duck (WILD)NEW------TOTAL------ Gadwall (WILD)NEW------TOTAL------ Anatidae (unidentified) (WILD)NEW------TOTAL------ Greater White-fronted Goose (WILD)NEW------TOTAL------ Snow Goose (WILD)NEW------TOTAL------ Swan Goose (WILD)NEW------TOTAL------ Lesser white-fronted goose (WILD)NEW------TOTAL------ Ross's Goose (WILD)NEW------TOTAL------ Golden Eagle (WILD)NEW------TOTAL------ Great Egret (WILD)NEW------TOTAL------ Great Blue Heron (WILD)NEW------TOTAL------ Ardeidae (unidentified) (WILD)NEW------TOTAL------ Short-eared Owl (WILD)NEW------TOTAL------ Long-eared Owl (WILD)NEW------TOTAL------ Lesser Scaup (WILD)NEW------TOTAL------ Redhead (WILD)NEW------TOTAL------ Greater Scaup (WILD)NEW------TOTAL------ Canvasback (WILD)NEW------TOTAL------ Gray Crowned-Crane (WILD)NEW------TOTAL------ Birds (DOMESTIC)NEW2-115--TOTAL3290939774223045-- Ruffed grouse (WILD)NEW------TOTAL------ Brent Goose (WILD)NEW------TOTAL------ Canada Goose (WILD)NEW------TOTAL------ Cackling Goose (WILD)NEW------TOTAL------ Red-breasted Goose (WILD)NEW------TOTAL------ Snowy Owl (WILD)NEW------TOTAL------ Great Horned owl (WILD)NEW------TOTAL------ Western Cattle Egret (WILD)NEW------TOTAL------ Bufflehead (WILD)NEW------TOTAL------ Common Goldeneye (WILD)NEW------TOTAL------ Red-tailed Hawk (WILD)NEW------TOTAL------ Rough-legged Hawk (WILD)NEW------TOTAL------ Red-shouldered Hawk (WILD)NEW------TOTAL------ Broad-winged Hawk (WILD)NEW------TOTAL------ Ferruginous Hawk (WILD)NEW------TOTAL------ Swainson's Hawk (WILD)NEW------TOTAL------ Muscovy Duck (WILD)NEW------TOTAL------ Sanderling (WILD)NEW------TOTAL------ Dunlin (WILD)NEW------TOTAL------ Western Sandpiper (WILD)NEW------TOTAL------ California Quail (WILD)NEW------TOTAL------ Crested Caracara (WILD)NEW------TOTAL------ Turkey Vulture (WILD)NEW------TOTAL------ Greater Sage-Grouse (WILD)NEW------TOTAL------ Northern Harrier (WILD)NEW------TOTAL------ Black Vulture (WILD)NEW------TOTAL------ Corvidae (unidentified) (WILD)NEW------TOTAL------ American crow (WILD)NEW------TOTAL------ Common Raven (WILD)NEW------TOTAL------ Black Swan (WILD)NEW------TOTAL------ Trumpeter Swan (WILD)NEW------TOTAL------ Tundra Swan (WILD)NEW------TOTAL------ Black-necked Swan (WILD)NEW-2----TOTAL-2---- Mute Swan (WILD)NEW------TOTAL------ Emu (WILD)NEW------TOTAL------ Snowy Egret (WILD)NEW------TOTAL------ Estrildidae (unidentified) (WILD)NEW------TOTAL------ Scarlet Ibis (WILD)NEW------TOTAL--1--- Merlin (WILD)NEW------TOTAL------ Prairie Falcon (WILD)NEW------TOTAL------ Peregrin falcon (WILD)NEW------TOTAL------ American Kestrel (WILD)NEW------TOTAL------ American Coot (WILD)NEW------TOTAL------ Northern fulmar (WILD)NEW------TOTAL------ Common Loon (WILD)NEW------TOTAL------ Sandhill Crane (WILD)NEW------TOTAL------ Bald Eagle (WILD)NEW------TOTAL------ Caspian Tern (WILD)NEW------TOTAL------ Dark-eyed Junco (WILD)NEW------TOTAL------ Herring Gull (WILD)NEW------TOTAL------ Laughing Gull (WILD)NEW------TOTAL------ California Gull (WILD)NEW------TOTAL------ Ring-billed gull (WILD)NEW------TOTAL------ Glaucous-winged Gull (WILD)NEW------TOTAL------ Glaucous Gull (WILD)NEW------TOTAL------ Great black-backed Gull (WILD)NEW------TOTAL------ Western Gull (WILD)NEW------TOTAL------ Bonaparte's Gull (WILD)NEW------TOTAL------ Thayer's Gull (WILD)NEW------TOTAL------ Eastern Screech-Owl (WILD)NEW------TOTAL------ White-winged Scoter (WILD)NEW------TOTAL------ Black Scoter (WILD)NEW------TOTAL------ Wild turkey (WILD)NEW------TOTAL------ Smew (WILD)NEW------TOTAL------ Northern Gannet (WILD)NEW------TOTAL------ Black-crowned Night-Heron (WILD)NEW------TOTAL------ Ruddy Duck (WILD)NEW------TOTAL------ Osprey (WILD)NEW------TOTAL------ Harris's hawk (WILD)NEW------TOTAL------ Parulidae (unidentified) (WILD)NEW------TOTAL------ House Sparrow (WILD)NEW------TOTAL------ Dalmatian pelican (WILD)NEW------TOTAL------ American White Pelican (WILD)NEW------TOTAL------ Brown Pelican (WILD)NEW------TOTAL------ Phalacrocoracidae (unidentified) (WILD)NEW------TOTAL------ Double-crested cormorant (WILD)NEW------TOTAL------ Phasianidae (unidentified) (WILD)NEW------TOTAL650-334166-- Chilean Flamingo (WILD)NEW------TOTAL------ Lesser flamingo (WILD)NEW------TOTAL------ Black-billed Magpie (WILD)NEW------TOTAL------ White-faced Ibis (WILD)NEW------TOTAL------ Glossy Ibis (WILD)NEW------TOTAL-1---- Grey Plover (WILD)NEW------TOTAL------ Horned Grebe (WILD)NEW------TOTAL------ Red-necked grebe (WILD)NEW------TOTAL------ Black-necked Grebe (WILD)NEW------TOTAL------ Pied-billed Grebe (WILD)NEW------TOTAL------ Psittacidae (unidentified) (WILD)NEW------TOTAL------ Common Grackle (WILD)NEW------TOTAL------ Greater Rhea (WILD)NEW------TOTAL------ Black-legged Kittiwake (WILD)NEW------TOTAL------ Common Eider (WILD)NEW------TOTAL------ Spheniscidae (unidentified) (WILD)NEW------TOTAL------ Common Tern (WILD)NEW------TOTAL------ Arctic Tern (WILD)NEW------TOTAL------ Barred Owl (WILD)NEW------TOTAL------ Royal Tern (WILD)NEW------TOTAL------ Sandwich Tern (WILD)NEW------TOTAL------ American Robin (WILD)NEW------TOTAL------ Barn Owl (Common Barn-Owl) (WILD)NEW------TOTAL------ Common Murre (WILD)NEW------TOTAL------ Arctic Jaeger (WILD)NEW------TOTAL------ Hooded Merganser (WILD)NEW------TOTAL------ Fish crow (WILD)NEW------TOTAL------ Neotropic cormorant (WILD)NEW------TOTAL------ Western screech owl (WILD)NEW------TOTAL------ Short-billed Gull (WILD)NEW------TOTAL------ Wood Stork (WILD)NEW------TOTAL------ Sabine's Gull (WILD)NEW------TOTAL------ Tree swallow (WILD)NEW------TOTAL------ Black Skimmer (WILD)NEW------TOTAL------ Forster's Tern (WILD)NEW------TOTAL------ Puna Teal (WILD)NEW------TOTAL------ Barrow's Goldeneye (WILD)NEW------TOTAL------ Willet (WILD)NEW------TOTAL------ Snowy plover (WILD)NEW------TOTAL------ Scaly-sided Merganser (WILD)NEW------TOTAL------ Baer's Pochard (WILD)NEW------TOTAL------ Fulvous Whistling Duck (WILD)NEW------TOTAL------ Great-tailed Grackle (WILD)NEW------TOTAL------ Pacific Loon (WILD)NEW------TOTAL------ Red-necked Phalarope (WILD)NEW------TOTAL------ Black Turnstone (WILD)NEW------TOTAL------ California condor (WILD)NEW------TOTAL--17--- Brandt's Cormorant (WILD)NEW------TOTAL------ Short-tailed shearwater (WILD)NEW------TOTAL------ King Vulture (WILD)NEW------TOTAL--1--- Plush-crested Jay (WILD)NEW------TOTAL--1--- All speciesNEW22115--TOTAL3356942810223215--

DIAGNOSTIC DETAILS

CLINICAL SIGNS
YES

METHOD OF DIAGNOSTIC
Diagnostic test, Clinical
Real-time reverse transcription polymerase chain reaction (rRT-PCR)National Veterinary Services Laboratories (NVSL), Ames, IowaHarris's hawk,Wood Duck,Northern Pintail,Sanderling,Black Scoter,Red-shouldered Hawk,Ruddy Duck,Black-necked Grebe,Black-billed Magpie,Blue winged teal,Turkey Vulture,Cinnamon Teal,Greater White-fronted Goose,Northern Gannet,Pied-billed Grebe,Mottled Duck,American crow,Barred Owl,Broad-winged Hawk,Thayer's Gull,Smew,Black-crowned Night-Heron,Green-winged Teal,Black-legged Kittiwake,Crested Caracara,Corvidae (unidentified),Osprey,Short-billed Gull,Anatidae (unidentified),Arctic Jaeger,Northern Shoveler,Baikal Teal,White-faced Ibis,Black Vulture,Dalmatian pelican,Snow Goose,Common Raven,American Black Duck,Tree swallow ,Phasianidae (unidentified),Northern Harrier,House Sparrow,Emu,Puna Teal,Mallard,Black Swan,Ferruginous Hawk,Great Egret,Forster's Tern,Parulidae (unidentified),Sandwich Tern,Gadwall,Psittacidae (unidentified),American Robin,Mute Swan,Fish crow,Phalacrocoracidae (unidentified),Hooded Merganser,Royal Tern,Short-eared Owl,Snowy Egret,Sabine's Gull,Tundra Swan,Great Blue Heron,Neotropic cormorant ,Merlin,Golden Eagle,Arctic Tern,Barrow's Goldeneye,Common Eider,Scaly-sided Merganser,Trumpeter Swan,Peregrin falcon,Long-eared Owl,Lesser white-fronted goose,Horned Grebe,Snowy plover,Northern fulmar,Ross's Goose,American Coot,Western screech owl ,Ardeidae (unidentified),Baer's Pochard,Gray Crowned-Crane,Red-necked Phalarope,Pacific Loon,Black Skimmer,Fulvous Whistling Duck,Lesser Scaup,Wood Stork,Great-tailed Grackle,Brent Goose,Estrildidae (unidentified),Greater Scaup,American Kestrel,Redhead,American wigeon,California condor,Dark-eyed Junco,Swan Goose,Laughing Gull,Herring Gull,Willet,California Gull,Prairie Falcon,Birds,Common Loon,Brandt's Cormorant,Ruffed grouse,Black Turnstone,Bald Eagle,Bufflehead,Greater Sage-Grouse,Canada Goose,Glaucous Gull,Double-crested cormorant,Caspian Tern,Great Horned owl,Western Grebe,Common Grackle,Sandhill Crane,Snowy Owl,American White Pelican,Chilean Flamingo,Barn Owl (Common Barn-Owl),Cackling Goose,Red-tailed Hawk,Red-breasted Goose,Ring-billed gull,Spheniscidae (unidentified),Greater Rhea,Rough-legged Hawk,Common Goldeneye,Cooper's Hawk,Glaucous-winged Gull,Lesser flamingo,Sharp-shinned Hawk,Bonaparte's Gull,Muscovy Duck,Swainson's Hawk,Red-necked grebe,Western Gull,Red-winged Blackbird,Eastern Screech-Owl,Plush-crested Jay,Glossy Ibis,Dunlin,Common Tern,Great black-backed Gull,Egyptian Goose,Roseate Spoonbill,Brazilian Teal,Short-tailed shearwater,Common Murre,King Vulture,White-winged Scoter,Scarlet Ibis,Brown Pelican,Wild turkey,Western Cattle Egret,Grey Plover,Canvasback,Western Sandpiper,Black-necked Swan,California Quail6602022/01/052024/02/29Positive
Gene sequencingNational Veterinary Services Laboratories (NVSL), Ames, IowaWood Duck,Turkey Vulture,Red-winged Blackbird,Dalmatian pelican,Lesser flamingo,Roseate Spoonbill,Great Blue Heron,American Coot,Spheniscidae (unidentified),Ruffed grouse,Western screech owl ,Black-necked Grebe,Western Grebe,Rough-legged Hawk,Ruddy Duck,Sharp-shinned Hawk,Wood Stork,Baer's Pochard,Glaucous Gull,Northern Gannet,Great black-backed Gull,Brazilian Teal,Harris's hawk,Greater Sage-Grouse,Puna Teal,American Robin,Fulvous Whistling Duck,Ring-billed gull,Western Gull,Forster's Tern,Glaucous-winged Gull,Bonaparte's Gull,Lesser Scaup,Greater Scaup,Neotropic cormorant ,Willet,Red-breasted Goose,Sabine's Gull,Short-billed Gull,Snowy plover,Royal Tern,Black Skimmer,Snowy Owl,Great Horned owl,Barn Owl (Common Barn-Owl),California Gull,Tree swallow ,Bufflehead,Pacific Loon,Fish crow,Wild turkey,Brandt's Cormorant,Red-shouldered Hawk,White-winged Scoter,Thayer's Gull,Black-legged Kittiwake,Black Turnstone,Black-crowned Night-Heron,Red-tailed Hawk,Scaly-sided Merganser,Swainson's Hawk,Muscovy Duck,Eastern Screech-Owl,Barrow's Goldeneye,Greater White-fronted Goose,Broad-winged Hawk,Black Scoter,Cooper's Hawk,Anatidae (unidentified),Sanderling,Short-tailed shearwater,California condor,Common Murre,Canvasback,King Vulture,Scarlet Ibis,Plush-crested Jay,Black-necked Swan,Western Cattle Egret,California Quail,Grey Plover,Smew,Western Sandpiper,Common Raven,Corvidae (unidentified),Black Swan,Blue winged teal,Parulidae (unidentified),Northern Pintail,Common Goldeneye,House Sparrow,Black-billed Magpie,Cinnamon Teal,Mute Swan,Northern Harrier,American White Pelican,White-faced Ibis,American crow,Egyptian Goose,Horned Grebe,American wigeon,Long-eared Owl,Red-necked grebe,Prairie Falcon,Brown Pelican,Emu,Herring Gull,Osprey,Ardeidae (unidentified),Gadwall,Ross's Goose,Mallard,Ferruginous Hawk,Baikal Teal,Estrildidae (unidentified),Great-tailed Grackle,Snowy Egret,Double-crested cormorant,Common Eider,Dunlin,Swan Goose,Mottled Duck,Birds,Green-winged Teal,Chilean Flamingo,Golden Eagle,Dark-eyed Junco,Canada Goose,Northern Shoveler,Phasianidae (unidentified),Merlin,Pied-billed Grebe,Arctic Tern,Greater Rhea,Barred Owl,Peregrin falcon,Red-necked Phalarope,Arctic Jaeger,Bald Eagle,Crested Caracara,Snow Goose,American Black Duck,Glossy Ibis,Trumpeter Swan,Lesser white-fronted goose,Short-eared Owl,Hooded Merganser,Psittacidae (unidentified),Redhead,Cackling Goose,Sandwich Tern,Gray Crowned-Crane,American Kestrel,Tundra Swan,Common Tern,Northern fulmar,Phalacrocoracidae (unidentified),Common Grackle,Common Loon,Brent Goose,Sandhill Crane,Laughing Gull,Black Vulture,Great Egret,Caspian Tern6602022/01/162024/02/29Positive
https://wahis.woah.org/#/in-review/4247
 
United States of America - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 42


GENERAL INFORMATION

COUNTRY/TERRITORY OR ZONE
ZONE

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
Listed disease

EVENT ID
4451

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2022/03/30

REASON FOR NOTIFICATION
Unusual host species

DATE OF LAST OCCURRENCE- CONFIRMATION DATE
2022/05/05

EVENT STATUS
On-going

END DATE- SELF-DECLARATION


NO REPORT INFORMATION

REPORT NUMBER
Follow-up report 42

REPORT ID
FUR_166298

REPORT REFERENCE- REPORT DATE
2024/03/07

REPORT STATUS
Validated

NO EVOLUTION REPORT

EPIDEMIOLOGY

SOURCE OF EVENT OR ORIGIN OF INFECTION
  • Contact with wild species
  • Unknown or inconclusive
EPIDEMIOLOGICAL COMMENTS
Highly pathogenic avian influenza (HPAI) H5N1 Eurasian lineage goose/Guangdong clade 2.3.4.4b was confirmed in three wild striped skunks (Mephitis mephitis) in Stevens County, Washington (WA) and a wild mountain lion (Puma concolor) in Granite County, Montana (MT).

QUANTITATIVE DATA SUMMARY

MEASURING UNIT
Animal

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Coyote (WILD)NEW------TOTAL-1-1-- Cats (DOMESTIC)NEW------TOTAL-714-- Virginia Opossum (WILD)NEW------TOTAL-431-- Domestic cat (WILD)NEW------TOTAL-611-- Gray Seal (WILD)NEW------TOTAL-11--- Bobcat (WILD)NEW------TOTAL-642-- Striped Skunk (WILD)NEW-3----TOTAL-412413-- Tiger (WILD)NEW------TOTAL-11--- Harbor Seal (WILD)NEW------TOTAL-21192-- Racoon (Northern raccoon) (WILD)NEW------TOTAL-1554-- Puma (WILD)NEW-1----TOTAL-2221--- Bottlenose dolphin (WILD)NEW------TOTAL-11--- American Black Bear (black bear) (WILD)NEW------TOTAL-413-- Brown bear (Grizzly Bear) (WILD)NEW------TOTAL-431-- Polar Bear (WILD)NEW------TOTAL--1--- Red Fox (WILD)NEW------TOTAL-854819-- Amur Leopard (WILD)NEW------TOTAL-11--- Fisher (WILD)NEW------TOTAL-321-- North American river otter (WILD)NEW------TOTAL-11--- American marten (WILD)NEW------TOTAL-11--- Abert's squirrel (WILD)NEW------TOTAL-1---- All speciesNEW-4----TOTAL-22613952--

DIAGNOSTIC DETAILS

CLINICAL SIGNS
YES

METHOD OF DIAGNOSTIC
Diagnostic test, Clinical
Real-time reverse transcription polymerase chain reaction (rRT-PCR)National Veterinary Services Laboratories (NVSL), Ames, IowaCats,Bobcat,American Black Bear (black bear),Red Fox,Tiger,Racoon (Northern raccoon),Domestic cat,Brown bear (Grizzly Bear),Gray Seal,Fisher,Puma,Amur Leopard,Bottlenose dolphin,Coyote,Harbor Seal,North American river otter,Striped Skunk,Polar Bear,Virginia Opossum,American marten1712022/05/052024/03/04Positive
https://wahis.woah.org/#/in-review/4451
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

California Contra Costa 05/22/2024 06/13/2024 EA H5N1 American crow Wild bird Morbidity/Mortality
California Contra Costa 05/22/2024 06/13/2024 EA H5N1 Common raven Wild bird Morbidity/Mortality

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

 
[bolding is mine]

June 18, 2024

Highly Pathogenic Avian Influenza (HPAI) Update and Biosecurity Advisory

To: California Poultry Producers

Detections of HPAI continue to be found in both domestic and wild birds nationally. Last month, there was a new detection of HPAI in a live bird market in San Francisco County, California. Wild waterfowl and raptors remain the largest threat of Eurasian H5N1 introduction to domestic poultry in California. The risk of disease entering domestic poultry flocks is always present. Enhanced biosecurity is critical in the face of ongoing disease outbreaks and wild bird carrier exposure.

To protect your flocks, we continue to request that you separate poultry from wild birds if you can. This action is particularly important if there is ANY water in the vicinity that may attract and congregate wild waterfowl. We recommend housing poultry inside and discouraging any interaction with wild birds, particularly migrating or resident waterfowl and raptors.

Because of the recent case in California poultry production and epidemiologic evidence that this strain was introduced by wild birds, we ask that California producers move their birds indoors through December 2024.

The risk to each farm may be different, so it is important to consider your situation when complying with this request. If you are certified organic and want to make changes to housing, you should contact your certifier before altering confinement and meet their requirements to remain certified. Over the next several months we will continue to assess the threat and rescind this recommendation if the situation changes. Thank you for your cooperation.

For more information about Avian Influenza, please visit:

www.cdfa.ca.gov/go/avianinfluenza

https://www.cdfa.ca.gov/AHFSS/Anima.../pdfs/AI_Poultry_Producers_Separation_web.pdf
 
Detections of Highly Pathogenic Avian Influenza in Wild Birds
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

California Siskiyou 06/21/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/21/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/24/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/24/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/24/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/24/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/24/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/24/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Siskiyou 06/24/2024 07/12/2024 EA H5N1 Eared grebe Wild bird Morbidity/Mortality
California Glenn 10/14/2023 07/12/2024 EA H5N1 Greater white-fronted goose Wild bird Morbidity/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:	24.3 KB ID:	994693

Santa Clara County, California
https://en.wikipedia.org/wiki/Santa_Clara_County,_California
---------------------------

Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: July 31, 2024
...​
Confirmed HPAI Detections
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

California Santa Clara 07/18/2024 07/25/2024 EA H5N1 Gull (unidentified) Wild bird Morbidity/Mortality
...


https://www.aphis.usda.gov/livestoc...an/avian-influenza/hpai-detections/wild-birds
 
[bolding is mine]

Klamath Basin wildlife refuges battle suspected botulism and bird flu outbreak
August 17, 2024
Excerpts:
A combination of botulism and bird flu has led to estimates of thousands of birds dying in the Klamath Basin National Wildlife Refuge Complex this summer.

Birds are dying at the Tule Lake National Wildlife Refuge in far Northern California. Last week, refuge staff deployed in a boat and collected 500 dead birds from Sump 1A, the largest water body in the Tule Lake Refuge.

John Vradenburg, supervisory biologist at the Klamath Basin National Wildlife Refuge Complex, suspects they’re dealing with a dual outbreak of botulism and highly pathogenic avian influenza, which was discovered in the refuges earlier this summer.
​-snip-
A complex of six wildlife refuges spanning the Oregon-California border, the Klamath Basin National Wildlife Refuge Complex serves as vital feeding and breeding grounds for tens of thousands of birds that use the Pacific Flyway to migrate.
-snip-
“Compared to what we can tell from historic records, this is the highest and most diverse waterbird population we’ve had on Tule Lake in three or four decades,” says Vradenburg. He estimates there are about 30,000 nesting grebes on the large water body known as Sump 1A, and 250,000 molting birds and up to 60,000 ducklings on Sump 1A and Sump 1B combined.​
-snip-
But after the last water releases from Upper Klamath Lake in May, the wetlands in the refuges began to warm and dry out, heightening the risk for an outbreak of avian botulism.
-snip-
On July 12, KWUA sent the Bureau of Reclamation a letter, urging the agency to take action to avoid a disease outbreak on the refuges, and to increase water allocations to irrigators to save this year’s crop harvests.
Around that same time, refuge staff started spotting dead and dying eared grebes. All of the samples they collected tested positive for highly pathogenic avian influenza.
​-snip-
The combination of bird carcasses, drying wetlands, and warm water created a “perfect storm” of conditions for botulism, says Vradenburg.​
-snip-
Avian flu complicates outbreak response
For the last two weeks, refuge staff have been surveying the wetlands and collecting dead birds. Vradenburg estimates at least 5,000 have died so far.
The likely presence of highly pathogenic avian influenza is complicating how they respond to the crisis. Unfortunately, this means staff can’t set up a rehab hospital to treat birds sickened with botulism, as they have in the past, because they can’t risk people coming into contact with the bird flu virus in a confined area.​

Samples have been sent to the U.S. Geological Survey’s National Wildlife Health Center in Madison, Wisconsin, for analysis. At this time, all of the refuges are still open to the public.​
...
https://www.opb.org/article/2024/08/17/klamath-basin-wildlife-refuge-bird-flu/
 
image.png - Click image for larger version  Name:	image.png Views:	1 Size:	24.4 KB ID:	998326

Tulare County, California
/https://en.wikipedia.org/wiki/Tulare_County,_California


​-----------------------------------
Detections of Highly Pathogenic Avian Influenza in Wild Birds
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

California Tulare 9/17/2024 10/4/2024 EA H5N1 European Starling Wild bird Agency harvest
California Tulare 9/21/2024 10/4/2024 EA H5N1 Brewer's Blackbird Wild bird Agency harvest
California Tulare 9/19/2024 10/3/2024 EA H5 Eurasian Collared Dove Wild bird Agency harvest
California Tulare 9/19/2024 10/3/2024 EA H5N1 European starling Wild bird Agency harvest
California Tulare 9/21/2024 10/3/2024 EA H5N1 Brewer's blackbird Wild bird Agency harvest

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

Fresno County, California
/https://en.wikipedia.org/wiki/Fresno_County,_California

------------------------------------
Detections of Highly Pathogenic Avian Influenza in Wild Birds

Last Modified: October 22, 2024
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

California Fresno 10/6/2024 10/16/2024 EA H5N1 Rock pigeon Wild bird Agency 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: November 12, 2024
...
State County Collection Date Date Detected HPAI Strain Bird Species WOAH Classification Sampling Method

California Tulare 9/15/2024 11/7/2024 EA H5N1 European starling Wild bird Agency harvest
California Fresno 10/11/2024 11/6/2024 EA H5N1 Rock pigeon Wild bird Agency harvest
California Fresno 10/11/2024 11/6/2024 EA H5N1 Rock pigeon Wild bird Agency harvest
California Fresno 10/11/2024 11/6/2024 EA H5N1 Rock pigeon Wild bird Agency harvest

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

 
California Department of Fish and Wildlife
Fall Migration Brings the Return of Avian Influenza in Wild Birds
December 6, 2024

Avian Influenza H5N1 is again circulating in susceptible wild birds in California during fall migration.

California sits at the epicenter of the Pacific Flyway, one of North America’s major migratory routes that bring millions of visiting birds through the state each fall and winter.

Preliminary detections of avian influenza have been made in wild birds collected in late October and November from several counties including Contra Costa, Marin, Monterey, Los Angeles, San Benito, San Luis Obispo, and San Diego.

Prior to these detections, the last confirmed detections of avian influenza H5N1 in wild birds in California was in July 2024. Avian influenza in free-ranging wild birds is primarily a disease of waterfowl and shorebirds, the natural hosts of avian influenza viruses whose wetland and other watery habitat is a significant factor for disease transmission among these species.

Predators and scavengers that feed on infected birds may also be at risk of acquiring infection. The Eurasian strain of Highly Pathogenic Avian Influenza (HPAI) H5N1 was first detected in California in July 2022. During the past two seasons, detections of the virus in wild birds have generally subsided during spring and summer and re-emerged in the fall as waterfowl and other waterbirds undertake fall migration.

Avian influenza spreads through direct bird-to-bird contact and may also spread to birds through contaminated surfaces including hands, shoes, clothing and hunting gear. While the Centers for Disease Control considers the transmission risk of avian influenza to people to be low, residents and waterfowl hunters are advised to take precautions to protect themselves, hunting dogs, falconry birds, poultry and pet birds.

Steps that may help reduce the spread of avian influenza include:
  • Report dead wild birds, and other wildlife, to CDFW using the mortality reporting form. While it is not possible to test every wild bird for avian influenza, all mortality reports are important and help disease specialists monitor the outbreak.
  • Report sick and dead poultry to the California Department of Food and Agriculture (CDFA) hotline at 1 (866) 922-2473.
  • Prevent contact between domestic birds and wild birds, especially waterfowl. Exclude wild birds from accessing chicken or other domestic bird feed and water.
  • Do not feed waterfowl or other waterbirds at park ponds as it may increase the congregation of birds and contribute to disease spread.
  • Do not bring potentially sick wild birds home or move sick birds to another location.
  • Before transporting potentially sick wild birds to wildlife rehabilitation centers, veterinary clinics, or other animal facilities, contact the facility for guidance and to determine if the bird should be collected.
  • If recreating outdoors in areas with large concentrations of waterfowl and other waterbirds, wash clothing and disinfect footwear and equipment before traveling to other areas or interacting with domestic birds.
  • Where it can be done so safely, dead birds may be disposed of to help reduce exposure to new birds and minimize scavenging by birds and mammals that also may be susceptible to infection. Dead birds may be collected into a plastic bag and placed in the regular trash collection. Guidance on protective equipment is available from the California Department of Public Health. If assistance or guidance is needed with the disposal of dead birds on private property, contact your county environmental health department or animal services for options available in your area.
Additional safety recommendations for waterfowl hunters:
  • Harvest only waterfowl that look and behave healthy. Do not handle or eat sick game. Do not handle wild birds that are obviously sick or found dead.
  • Field dress and prepare game outdoors or in a well-ventilated area. Do not dress wild game in the vicinity of poultry or pet birds.
  • Wear rubber gloves or other impermeable disposable gloves while handling and cleaning game.
  • Remove and discard intestines soon after harvesting and avoid direct contact with intestinal contents. Place waste in a plastic bag and dispose in a garbage container that is protected from scavengers.
  • Do not eat, drink, smoke or vape while handling dead game.
  • When done handling game, wash hands thoroughly with soap and water (or alcohol-based hand sanitizer if soap and water are unavailable), and clean knives, equipment and surfaces that came in contact with game. Wash hands before and after handling any meat.
  • Keep harvested waterfowl cool (either with ice or refrigeration), below 45 degrees Fahrenheit, until processed and then refrigerate or freeze.
  • Thoroughly cook all game to an internal temperature of 165 degrees Fahrenheit before consuming.
  • Clean and disinfect clothing, footwear and hunting gear before traveling to other areas. As appropriate, footwear and gear may be washed with soap and water, then disinfected in household bleach diluted 1:10 with water for at least 10 minutes.
  • Bathe dogs with pet shampoo after hunting outings, and do not feed dogs raw meat, organs or other tissues from harvested waterfowl.
  • Falconers should avoid hunting waterfowl, and other waterbirds, during the avian influenza outbreak.
For more information on avian influenza H5N1, check out CDFW’s informational flyer addressing frequently asked questions and links to additional resources. The USDA maintains the official list of detections on its website. For guidance on keeping domestic birds healthy, please visit the CDFA and USDA websites.

For guidance on orphaned or injured live wild birds, please contact your nearest wildlife rehabilitation center prior to collecting the animal. Be advised that some wildlife rehabilitation centers may have restrictions on the wildlife species they will admit.

https://wildlife.ca.gov/News/Archiv...s-the-return-of-avian-influenza-in-wild-birds

 
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