Found 1 blog entry tagged as butterfly migration orange county.

Swarms of butterflies are invading inland sections of Southern California as a result of an unusually heavy migration of a common species making its way from Mexico to the Pacific Northwest to breed, experts say.

About 1 billion butterflies, known as Painted Ladies, are flying at speeds of 20 miles per hour in a northerly direction from the deserts of Mexico to reach breeding grounds in Oregon, according to several sources in different newspapers.  

Here in Orange County we are seeing this magnificent phenomenon - and if you were wondering what was happening - well, that's that. The volume this year is definitely unusual - with many of us experiencing these swarms of butterflies these past days. 

Also, we are spotting many of the orange and…

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