While nutrition may be to blame in Alaska, moose in Maine are suffering from a major tick problem. This past fall marked one of the highest tick counts recorded by biologists in the past 10 years, and early data from a radio collar study identified about a 30 percent winter mortality rate for cows. That mortality rate usually averages about 10 percent. IFW wildlife biologists have documented moose winter kills throughout the state. "Many of the moose carcasses are engorged with winter ticks, and some are practically bare of hair as they have tried to rub the ticks off," the agency wrote in the press release.