Roughly 200-300 ducks have been found dead in Chicago and the northern suburbs around Lake Michigan in recent days, according to a new report from local news outlet NBC5. The red-breasted mergansers have died of suspected bird flu,

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,

From Hyde Park to Wilmette, wildlife monitors say they’ve discovered around 300 red-breasted mergansers dead or dying since Friday. The largest clusters were found at North Avenue and Oak Street Beaches.