August 14, 2008
Avian Botulism Killing Canadian Ducks
Provincial environment officials in Manitoba, Canada, say avian botulism is behind a spate of duck deaths in rivers in Winnipeg.
For several weeks, residents and workers around the area known as "The Forks," where the Assinboine and Red Rivers meet, have reported seeing dead ducks and unusual behavior among the birds, the Winnipeg Sun reported Thursday.
Jeanella Budge, who works at a refreshment stand, told the newspaper she's seen more than 100 dead ducks floating in recent weeks.
"At times, the ducks that seem healthy have been seen picking on the sicker ones and trying to drag their heads underwater," she said.
Provincial conservation officials said tests had shown the cause was viral avian botulism, which attaches to natural bacteria and is fatal to water birds, the Sun said.