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

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

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

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

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

The Milwaukee County Zoo has closed its Herb and Nada Mahler Family Aviary as a precautionary measure against avian influenza ...

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

CHICAGO - The avian flu outbreak that has killed millions of chickens nationwide, driving up the price of eggs, is now ...

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

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