My grandmother always told me that was a bad sign. I don’t know whether she was implying I would have to do anything wrong for it to happen, or if it was just by chance, but there you go. It may just be a story in her family.
As for the virus thing, yes, you should check into it. But really, an bird dead from the West Nile Virus landing on an anti-semite’s porch? There has to be a wives’ tale in there somewhere.