More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a new study in the journal Evolution ...

A Jan. 30 Facebook post (direct link, archive link) makes a series of claims about bird flu. "Remember they are not killing the ducks, seagulls, eagles and quail," reads text in the post.

In February 2024, government veterinarians in the Czech Republic investigating a bird flu outbreak found themselves in the middle of a puzzling case. The highly pathogenic H5N1 virus was ...

Bird flu is here to stay. The H5N1 avian influenza is proliferating among U.S. cows and there are now two strains circulating among mammals and birds. Though there are only 68 confirmed cases in ...

It might be Valentine’s Day – but this weekend is for more than just love birds. The Great Backyard Bird Count is back. Between Feb. 14 and 17, the event invites nature enthusiasts around ...

Three cow veterinarians have tested positive for bird flu antibodies in the United States, according to a new study that suggests not all virus infections are being detected. The current outbreak ...