Scientists Find the Killer of Trumpeter Swans in Washington

Washington State Department of Fish and Wildlife biologists have counted 261 dead majestic trumpeter swans so far this winter in northern Puget Sound. It is believed that the death rate for swans is higher than normal this winter.

Scientists Find the Killer of Trumpeter Swans in Washington This winter, death rates of swans witnessed a rise by 75% than normal. Biologists have said that physical and environmental challenges have made it difficult for swans to ensure their survival.

State wildlife biologist Chris Danilson said there is evidence that aspergililosis - a kind of fungus - is highly contributing in the mortality of swans this winter.

"It's a fungus that they'll usually pick up in the feed that they're eating. So a lot of times it's in the grains or corn, wastage in fields left...

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