Summary
DENVER - As bird flu is spread continent-to-continent by wild birds, the seasonal migration that is normally one of nature's wonders is becoming something scary.
Could bird flu reach North America through migrating birds? Biologists in Alaska and Canada are keeping an eye out and say it's possible by next year.See the full content of this document
Extract
Bird Flu Experts Watch Migration
Scientists from several agencies have been monitoring large flocks...
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