An unusual wintertime outbreak of West Nile virus has killed more than two dozen bald eagles in Utah and thousands of shore birds around the Great Salt Lake, state wildlife officials said on Tuesday. At least 27 bald eagles have died this month in the northern and central parts of Utah from the blood-borne virus, and state biologists reported that five more ailing eagles were responding to treatment at rehabilitation centers. The eagles are believed to have contracted the disease by preying on sick or dead shore birds called eared grebes that were infected by West Nile virus, said Leslie McFarlane, Utah wildlife disease coordinator. The water birds have died by the thousands in and around the Great Salt Lake since November.
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