The largest concentrations of sick mergansers were found Saturday at North Avenue Beach and Oak Street Beach. Other birds ...

Reports of dead birds washing up on beaches along Lake Michigan are sparking new fears over bird flu. Over the weekend, ...

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

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

Wildlife professionals and advocates are grappling with an avian influenza outbreak that seems to be growing more virulent ...

H5N1 bird flu — have been found along the shores of Lake Michigan in the Chicago area, prompting warnings from area health officials.

A new strain of highly pathogenic bird flu (H5N9), which has never been seen in the United States before, was recently discovered on a duck farm in ...

Officials urged residents of the Chicago area not to touch -- or let their pets touch -- dead or sick birds as a bird flu ...

When she took her dog out to Oak Street Beach on their morning walk Sunday, Portia Belloc Lowndes came across a scene that was so disturbing, she said, it felt “like a horror show.” Around 20 dead ...

The outbreak started in December and has now spread from a few reports in the suburbs to hundreds in the city, along Lake ...