The Nevada Department of Wildlife has been actively addressing recent cases of Avian Type C Botulism.
“The disease is often fatal in birds, but is not harmful to humans,” said Russell Woolstenhulme, Migratory Game Bird Staff Biologist at NDOW.
NDOW says type C Botulism has been reported from within the Truckee Meadows area as well as an outbreak near the Carson Lake Wetlands. A type C botulism outbreak is usually triggered when summer temperatures climb above 90° and water levels start to drop. These conditions can cause a decrease in water oxygen levels, which can kill fish and water insects allowing the botulism bacteria to enter a rapid growth phase that leads to toxin production. Ducks and other water birds pick up the bacteria through feeding and often die. Affected birds will be weak, unable to fly, walk or swim.
A temporary treatment facility has been constructed at the Carson Lake Wetlands, which is a part of a U.S. Bureau of Reclamation property. It's located south of Fallon.
“Efforts have proven to be successful for many shorebirds and ducks,” said NDOW Wildlife Staff Specialist Mike Zahradka.
Type C botulism has not been associated with disease in humans, however, always wash your hands thoroughly after any contact with wildlife. Also, NDOW advises keeping pets away from sick or dead birds. “In cases where a pet may have ingested a contaminated carcass, monitor them for signs of sickness and contact your veterinarian if you suspect they are getting sick,” said Dr. Peregrine Wolff, DVM veterinarian for NDOW.
“Crews have been working daily since the outbreak was detected, including weekends and holidays, to help alleviate the situation,” said Zahradka. “Some days we’ve had as many as four airboats to assist with the clean-up. Our efforts are ongoing and this situation will likely continue for a few more weeks until water temperatures cool off.”
For more information, you can call the Nevada Department of Wildlife at 775-688-1500.
(Nevada Department of Wildlife contributed to this report.)
