More than 300 dead geese and other waterfowl have been discovered in five counties, and bird flu is likely to blame, officials say.

The wild birds died from bird flu, according to preliminary testing. State wildlife officials say they suspect more than 300 birds across five counties have been killed by the illness. The illness is widespread in wild birds in Michigan,

Dead wild birds recently sampled across several Lower Peninsula counties are suspected to be positive for bird flu.

As the bird flu continues to spread across the U.S., the Michigan Department of Natural Resources says it is widespread among wild birds in the state, with more than 300 dead wild birds found in five counties suspected of being killed by the virus.

An egg producers' association says farmers are "absolutely worried" about the spread of the virus.