The infected birds "present with tremors and little ability to move," said a local conservation group tracking the outbreak.

Officials urged residents of the Chicago ... birds to 311.” According to the Illinois Department of Natural Resources, conservation officers received reports over the weekend of "ducks, red ...

Around 20 dead birds lay belly-up on ... during the weekend of ducks, red-breasted mergansers and Canada geese at Oak Street and North Avenue beaches in Chicago and Tower Beach in Winnetka.

Over the weekend and early Monday morning, a large number of dead birds were seen washed up on numerous beaches along Lake Michigan in Chicago ... weekend of "ducks, red-breasted mergansers ...

Since Friday, hundreds of dead and sick birds have been found along Lake Michigan’s shore — all likely infected with bird flu ...

A lot of elements came together in this grim photo in which Annette Prince, director of the Chicago Bird Collision Monitors, recovers a dead red-breasted merganser. While Prince was trying to keep ...

Red-breasted merganser ducks come to Chicago for the winter. The bird collision monitors said they're also seeing some H5N1 symptoms cropping up among crows and gulls. "These birds are grounded on ...

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

A massive group of dead waterfowl that washed up along the southern shores of Lake Michigan near Chicago ... bird flu outbreak, wildlife officials said this week. The majority of the waterfowl ...