Quebec, Canada has been added to the list of locations with a flock of dead birds

“All they can tell me is that it’s not avian influenza, it’s not the West Nile virus, and it’s not poison. It won’t stop. I’m finding more birds every day,” [Farmer Sylvain Turmel] said.

Turmel said that once they fall, the pigeons usually lie on the ground for an hour or two before dying.

Swedish authorities claim fireworks are to blame, while Arkansas and Louisiana suspect internal bleeding from noise trauma, Italy says it was lack of oxygen, and Japan still thinks there may be a link to avian influenza.