After multiple recent reports of ducks and geese washing up dead on Chicago's lakefront, Illinois wildlife officials tell Axios they believe the deaths are the result of a bird flu resurgence caused by warmer weather.

Hundreds of red-breasted mergansers have been affected by a bird flu outbreak on Chicago's Lake Michigan shoreline, raising concerns for wildlife and pets.

Monitors with an area bird tracking organization say that they've determined that a number of ducks have succumbed to bird flu​ along Lake Michigan. Marissa Sulek reports.

Hundreds of red-breasted mergansers have been found either dead or sick over the past few days along Lake Michigan in Chicago and into the northern suburbs. Officials suspect that highly contagious bird flu is the cause of the illnesses found in the mergansers,

H5N1 bird flu — have been found along the shores of Lake Michigan in the Chicago area, prompting warnings from area health officials. The Chicago Bird Collision Monitors (CBCM), a volunteer conservation project dedicated to the protection of migratory birds,