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.

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.