Date: 09/28/2006

Number: 1

While riding the Metro-North Hudson Line (on the east side of the Hudson River) to work in NYC, I caught sight of a very large, apparently red butterfly flying south along the Hudson River (or following the parallel train line). When it paused in flight I confirmed that it was a butterfly. Then there were at least four or five more, and I could see that they were Monarchs. They were all doggedly flying south at different locations along the train line. None appeared beyond the point where the tracks turn inland towards the City. I think they must be following the course of the river. Incredibly exciting!
Today was the second time I have witnessed this; the first was one day last week, perhaps Thursday or Friday (9/21-22).

Dobbs Ferry, NY

Latitude: 41 Longitude: -73.9

Observed by: Jane
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