And one just did. In Arkansas, thousands of blackbirds fell dead from the sky over the town of Beebe.
Birds were ancient omens. An autopsy on a few showed they didn't die of starvation but rather blunt force. What's large enough to knock thousands of birds out of the sky? A big ol' alien spaceship? Violent weather is the more likely answer. A violent updraft that caught up sleeping birds and disoriented them likely have caused them to literally fly into the ground trying to escape it. A wooded area in the town has been used a roost, home to several hundred thousand birds for years.
So, sorry, conspiracy folks, it seems that there is a good explanation. Now if a bunch of fish had also died in Arkansas, that would be different.