"Bald Eagle Deaths in Utah Alarm And Mystify Scientists"

"SALT LAKE CITY -- Bald eagles are dying in Utah - 20 in the past few weeks alone - and nobody can figure out why."

"Hundreds of the majestic birds - many with wing spans of 7 feet or more - migrate here each winter, gathering along the Great Salt Lake and feasting on carp and other fish that swim in the nearby freshwater bays.

Earlier this month, however, hunters and farmers across five counties in northern and central Utah began finding the normally skittish raptors lying listless on the ground. Many suffered from seizures, head tremors and paralysis in the legs, feet and wings."

John M. Glionna reports for the Los Angeles Times December 29, 2013.