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

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

Tarik Shahzad logged 294 birds last year, a new record to Cook County, which is a hot spot for bird-watching in the Midwest.

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.

Hundreds of dead or sick red-breasted ... dead and sick birds showing up between Hyde Park and Wilmette could be a sign that the highly contagious bird flu is spreading in the Chicago area.

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 ...

Roughly 200-300 ducks have been found dead in Chicago and the northern suburbs around Lake Michigan in recent days, according ...

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 ...

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 ...

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 ...

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