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

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

As it mutates, the bird flu has seemingly been able to infect other bird species, pets, other kinds of animals and, on rare ...

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 area not to touch -- or let their pets touch -- dead or sick birds as a bird flu outbreak sickens and kills many across the region. The warning comes amid ...

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

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 ...

This week, bird monitors also collected dead ducks on 31st Street Beach in Chicago on Tuesday and Wednesday. "We've been getting hundreds of calls throughout eight counties from around the Chicago ...

Hundreds of red-breasted mergansers have been found either dead or sick over the past few days along Lake Michigan in Chicago ...

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.

Where has bird flu been reported in Illinois? Are my pets at risk? Should I still be eating eggs? Here’s what to know about ...