New and Ongoing Wildlife Mortality Events Nationwide
USGS and a network of partners across the country work on documenting wildlife mortality events in order to provide timely and accurate information on locations, species and causes of death. This information is used by natural resource managers, researchers, public health officials and legislators to help design disease prevention and mitigation strategies, to address interconnections between human, domestic animal and wildlife disease, and to assist in identification of 'normal' disease issues vs. biosecurity concerns.
These data are not all-inclusive. Information on some outbreaks may not be received until months or years after the event, but efforts continue to make the information as complete as possible. For information on previous wildlife mortality events and events that used to be on this page, please see the Quarterly Mortality Reports.
The Recent Mortality Events Map visualizes the data on this page in an interactive map. Watch for trends and filter events based on type and location.
For additional information on mortalities
- Western U.S.: Barb Bodenstein, 608-270-2447, email@example.com
- Central U.S.: Dr. LeAnn White, 608-270-2491, firstname.lastname@example.org
- Eastern U.S.: Dr. Anne Ballmann, 608-270-2445, email@example.com
- Hawaii, Pacific Islands: Dr. Thierry Work, 808-792-9520, firstname.lastname@example.org
- Nationwide, single animal cases only: Jennifer Buckner, 608-270-2443, jBuckner@usgs.gov
More information on reporting an event can be found at the event reporting page.
Date last updated :
Feb 18, 2014
|Mortality Begin Date
||Estimated Mortality to Date
|02/04/2014||ongoing||MD||TALBOT||Ruddy Duck, Redhead Duck, Lesser Scaup, Canvasback||Open: emaciation||< 75||USGS NWHC|
|01/28/2014||01/29/2014||MT||TETON||Mallard||Trauma||< 25||USGS NWHC|
|01/25/2014||ongoing||AZ||MOHAVE||Eurasian Collared Dove||Viral Infection: pigeon paramyxovirus 1||< 10||USGS NWHC|
|01/24/2014||ongoing||MS||PANOLA||Common Grackle, Brown-headed Cowbird||Open: toxicosis suspect||~ 1000||USGS NWHC|
|01/15/2014||ongoing||AZ||MARICOPA||Unidentified Pigeon, Unidentified Dove, Great-tailed Grackle, Mourning Dove, Inca Dove||Toxicosis suspect||< 25||USGS NWHC|
|01/14/2014||ongoing||MO||DALLAS||Little Brown Bat||Fungal Infection: white-nose syndrome||0||USGS NWHC|
|01/13/2014||ongoing||NE||MERRICK||Mallard||Avian cholera||< 100||USGS NWHC|
|01/12/2014||ongoing||AR||MARION||Northern Long-Eared Bat||Fungal Infection: white-nose syndrome||< 10||USGS NWHC|
|01/02/2014||01/02/2014||MI||ALCONA||Mallard||Aspergillosis||< 25||MI Dept of Natural Resources|
|01/01/2014||01/02/2014||OR||MORROW||American Crow||Undetermined||~ 100||USGS NWHC|
|01/01/2014||ongoing||KS||MONTGOMERY||Red-winged Blackbird||Trauma||< 25||USGS NWHC|
|12/31/2013||ongoing||CA||SAN JOAQUIN||Ross' Goose, Aleutian Canada Goose||Undetermined||< 150||- no diagnostics pursued -|
|12/30/2013||ongoing||CA||SAN JOAQUIN||American Coot, Killdeer, Black-necked Stilt, Northern Shoveler, Greater White-fronted Goose||Avian cholera suspect||~ 200||CA Animal Health/Food Safety L|
|12/26/2013||12/26/2013||UT||UTAH||Eurasian Collared Dove||Viral Infection: Avian Paramyxovirus 1, Airsacculitis||~ 50||USGS NWHC|
|12/23/2013||01/31/2014||CA||SAN MATEO||Green-winged Teal, Northern Shoveler, Ruddy Duck, American Coot, Canada Goose||Avian cholera||< 400||USGS NWHC|
|12/14/2013||12/18/2013||UT||SALT LAKE||Northern Shoveler||Trauma: impact||~ 200||USGS NWHC|
|12/12/2013||ongoing||WA||WHATCOM||Trumpeter Swan, American Wigeon, Green-winged Teal, Mallard||Aspergillosis, Lead poisoning||~ 300||USGS NWHC|
|12/12/2013||12/12/2013||VA||PRINCE WILLIAM||European Starling||Trauma: impact||~ 100||USGS NWHC|
|12/03/2013||12/13/2013||OH||SANDUSKY||Ring-billed Gull||Undetermined||< 75||USGS NWHC|
|12/03/2013||ongoing||MO||JACKSON||Eastern Pipistrelle (AKA Tri-colored)||Fungal Infection: white-nose syndrome||0||USGS NWHC|
|11/28/2013||ongoing||UT||MULTIPLE COUNTIES||Bald Eagle||Viral Infection: West Nile||< 75||USGS NWHC|
|11/18/2013||ongoing||AK||NOME||Crested Auklet, Thick-billed Murre, Northern Fulmar, Glaucous Gull||Avian cholera, Salmonellosis||~ 300||USGS NWHC|
|11/13/2013||12/31/2013||NM||LEA||Eurasian Collared Dove||Viral Infection: Avian Paramyxovirus 1||~ 100||USGS NWHC|
|11/11/2013||01/31/2014||UT||BOX ELDER||Eared Grebe||Viral Infection: West Nile||~ 20000||USGS NWHC|
|11/09/2013||11/11/2013||WA||SNOHOMISH||Mallard||Aspergillosis||~ 300||USGS NWHC|
|11/07/2013||ongoing||MN||ITASCA||Lesser Scaup||Parasitism: trematodiasis, Parasitism: Cyathocotyle bushiensis, Parasitism: Sphaeridiotrema sp.||< 10||USGS NWHC|
|10/29/2013||ongoing||NY||JEFFERSON, OSWEGO||Common Loon, Long-Tailed (AKA Oldsquaw) Duck, Herring Gull, Red-necked Grebe, Great Black-backed Gull||Botulism suspect||~ 300||- no diagnostics pursued -|
|10/29/2013||10/29/2013||NM||SAN MIGUEL||American Crow||Trauma: gunshot||< 10||USGS NWHC|
|10/24/2013||ongoing||WI||LA CROSSE||American Coot||Parasitism: trematodiasis, Parasitism: Cyathocotyle bushiensis, Parasitism: Leyogonimus polyoon||~ 50||USGS NWHC|
|10/24/2013||ongoing||MN||HOUSTON||American Coot, Lesser Scaup||Parasitism: trematodiasis, Parasitism: Cyathocotyle bushiensis, Parasitism: Leyogonimus polyoon||~ 200||USGS NWHC|
|10/22/2013||10/22/2013||TX||ECTOR||White-winged Dove||Toxicosis: strychnine, Trauma||< 10||USGS NWHC|
|10/21/2013||11/04/2013||CA||MADERA||American Coot, Ruddy Duck, Unidentified Sandpiper||Botulism suspect||~ 200||- no diagnostics pursued -|
|10/15/2013||11/15/2013||MO||MONROE||American White Pelican||Undetermined||< 25||- no diagnostics pursued -|
|10/11/2013||10/17/2013||OR||MULTNOMAH||Bullfrog||Undetermined||~ 3500||OR State Diagnostic Lab, San Diego Zoo Diagnostic Lab|
|09/30/2013||10/03/2013||OR||MULTIPLE COUNTIES||Unidentified Swallow, Violet-Green Swallow, Barn Swallow, Tree Swallow, Vaux's Swift||Starvation||~ 1350||OR State Diagnostic Lab|
|09/30/2013||ongoing||WA||CLARK||Gadwall, Unidentified Scaup, American Coot, American Wigeon, Mallard||Botulism type C||~ 100||USGS NWHC|
|09/25/2013||10/09/2013||TX||MIDLAND||White-winged Dove||Toxicosis: strychnine, Trauma||< 25||USGS NWHC|
|09/01/2013||12/01/2013||AZ||YUMA||Eurasian Collared Dove, White-winged Dove, Mourning Dove||Viral Infection: pigeon paramyxovirus 1, Toxicosis: ethanol, Toxicosis: Avitrol||~ 200||USGS NWHC|
|09/01/2013||12/31/2013||TX||LUBBOCK||Eurasian Collared Dove, Rock Dove, White-winged Dove||Toxicosis: carbamate compound, Toxicosis: ethanol, Viral Infection: pigeon paramyxovirus 1||~ 200||USGS NWHC|
|09/01/2013||ongoing||WI||LANGLADE||Red-tailed Hawk||Gout||< 25||USGS NWHC|
|07/01/2013||ongoing||Atlantic Coast NY-FL||MULTIPLE COUNTIES||Bottlenose Dolphin||Viral Infection: Morbillivirus, Brucellosis||< 1000||NOAA|
|06/25/2013||11/22/2013||MI||BENZIE, LEELANAU||Red-breasted Merganser, Ring-billed Gull, Double-crested Cormorant, White-winged Scoter, Long-Tailed (AKA Oldsquaw) Duck||Botulism type E||< 500||USGS NWHC|
|06/24/2013||10/04/2013||MD||TALBOT||Mallard, Black-necked Stilt, Red-winged Blackbird, Great Blue Heron, Double-crested Cormorant||Botulism type C, Bacterial infection: Riemerella anatipestifer||< 350||USGS NWHC, SCWDS|
|06/12/2013||08/30/2103||IN||ALLEN||Mallard, Canada Goose, Domestic Duck||Botulism type C||< 300||USGS NWHC|
|04/01/2013||ongoing||NE||HALL||Unidentified Sandhill Crane||Bacterial infection suspect||< 25||USGS NWHC|
Explanation of fields:
Mortality begin date is the date the mortality began -- for most wildlife disease events, this is an estimate only, as carcasses may not be noticed immediately.
End date is again usually an estimate of the last day new carcasses were found.
State and country identify the area in which the mortality is occurring. NOTE: avian mortality events may cover several counties and possibly multiple states given the migratory nature of many species.
Species shown on the table include up to 5 of the species involved in the event. In some cases, group identifiers like 'waterfowl' or 'shorebirds' have been used instead of specific names when a large number of different species are involved.
Diagnosis includes a final diagnosis, if known, with no qualifiers; a suspected diagnosis once preliminary investigations have been made; or an indication that tests are still in process. NOTE: In some instances, where mortality occurred but no specimens were sent to NWHC or another diagnostic laboratory or -- in rare instances -- where tests could not definitely identify a trigger for the mortality, the cause of death may never be determined. Such events are identified with the word 'open' in the diagnosis column.
The estimated mortality provides some indication of the severity of the event. Numbers may change rapidly from one week to the next.
The 'reported by' field indicates the lab(s) or agencies who reported or are working on the mortality event.
USGS NWHC = USGS National Wildlife Health Center
USDA NVSL = USDA National Veterinary Services Lab
SCWDS = Southeastern Cooperative Wildlife Disease Study
NOTE: If you find a dead bird, mammal, reptile or amphibian, please contact your state natural resource agency first. They will know the proper reporting procedures for your area. Contact information may be found online or in the government pages of your local telephone book.