Add Illinois to the list, saw an article from Drudge yesterday saying lots of dead birds near Marion, Il.
I saw a google map of the incidents here and the hub seemed to be Atlanta.
This thread mentions blue beaks.
http://www.freerepublic.com/focus/news/2653091/posts?page=34
Dead Birds: Thousands of turtle doves fall from sky in Italy
Did the airlines start using a new ‘water’ in the onboard johns that doesn’t freeze? It would explain the sudden deaths of crabs, fish and birds.