Well the first link says it may be due to wind shear and considering they were found in water I am inclinded to agree, we know how deadly they can be
for powerfull planes. Wrong place wrong time maybe.
The second one could be fowl play

Something like this happened near me once but that was against dogs(some sicko hid poison in pieces of meat and
buried it in the snow where children played as well as dogs...)
The Third link sounds like it could be West nile but I've never heard of them dropping dead in such numbers before.. Maybe a new mutation in the
Virus' DNA? Worrying. Could be something else alltogether like Climate Change though, can't rule that out.
The fourth is a mystery to me. The article says it could be an "accounting error" but I find that hard to believe.
The last about the cows sounds like Chemical contamination because of the number of miscarriages.
If this were bird flu related someone would have picked up on it as there are lab tests that can be done to detect it.
[edit on 21-9-2005 by sardion2000]
[edit on 21-9-2005 by sardion2000]