[Tweeters] Boreal irruptives on the move !

[khanh tran]

Hi Tweets, 
 
Here is a current and well-done article on the boreal irruption.  
 
http://ebird.org/content/ebird/news/Irruption2007Nov.html
 
Good birding, 
 
Khanh Tran (Portland, Oregon)
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