[blackdog]

How does one differ bird deaths from mysterious bird deaths?

My guess is the availablity of a researcher?

[blueplum]

bird deaths is one or two maybe three
mysterious bird deaths is hundreds/thousands/tens of thousands from Louisiana to Canada to Sweden and Italy
http://www.digitaljournal.com/article/302208

not to mention the hundreds of thousands of dead fish:
http://www.naturalnews.com/030985_mysterious_deaths_birds.html