One UW expert is blaming the warm winter for the spread of the bird flu.
Jerry Clark with the extension office at UW-Madison says not as many wild birds have migrated south this year, and that has kept the bird flu in circulation. Many of the bird flu cases in commercial bird flocks start with wild birds. Wisconsin has seen two recent bird flu cases, and has seen a human case in Barron County. Clark says it is a concern that small flocks of wild birds can potentially infect the large flocks of turkeys and chickens that dot western Wisconsin.
