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Researches Look For Cause Of Declining Trumpeter Swan Cygnets

CREDIT MICK THOMPSON / FLICKR
A group of swans is known as a "bevy." More than 3,000 of the water fowl have descended on the Deer Parks Wildlife Mitigation Unit near Idaho Falls. Ample feeding grounds and plenty of water in the area draws the birds to the region annually.

Trumpeter swan cygnets are dying at a startling rate, threatening the swan populations of the West. We talk with Camas Refuge Manager Brian Wehausen and wildlife biologist Andrea Kristof about what is causing these declines.

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