Date: 09/06/2010

Number: 200

In the afternoon of Monday, September 6 we found hundreds of butterflies on our oak and mulberry trees. We watched them for over an hour. We went back later in the afternoon and they were still there. A thunderstorm came around 5:30 pm and the butterflies were gone. My observation time: I was watching for _4__ hours and ___ minutes.

Editor’s Note: We are estimating a minimum of 200 monarchs based on observer’s estimate of “hundreds.”

Altoona, IA

Latitude: 41.6 Longitude: -93.5

Observed by: Mary
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