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

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

Anxieties are high as experts warn the avian flu outbreak could worsen in the spring, but egg prices are spurring more ...

Avian flu is devastating bird populations along Chicago’s lakefront, with hundreds of dead waterfowl reported in recent days.

A massive group of dead waterfowl that washed up along the southern shores of Lake Michigan near Chicago and its northern suburbs is believed to be linked to the ongoing bird flu outbreak ...

Avian influenza spreads in birds, cows and other animals, and it can sometimes spread to people. In the United States, there ...

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.

Hundreds of dead or sick red-breasted mergansers have been found along Lake Michigan, sparking bird flu concerns.

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

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

Annette Prince, director of the Chicago Bird Collision Monitors picks up a dead red-breasted merganser at 35th Street Beach ...

While it's tragic and alarming to see a massive die-off, it's not uncommon for birds that travel in such large populations.