I think I read that no natural or disease cause of death could be found in all the birds dropping dead.
So no one should be alarmed of radioactive fallout from Japan in your opinion?
Who was the author of that broad statement? The same thing was said early on about bees dying off (colony collapse) by many media sensationalists. They were sure it was Globull Warming or pesticides, but it's turned out to be a combination of fungal and viral distress. Interesting how the media spends weeks drumming up hysteria on events like this, then when a totally plausible explanation is found they walk away like a house cat that just turned over a potted plant. Pardon me if I choose to not participate in the hysteria.
So no one should be alarmed of radioactive fallout from Japan in your opinion?
Probably no reason for alarm here given the distance. See the size of the atmosphere and the distance to Japan from the USA for details.