Date: 09/19/2021

Number: 600

On the beach at Warren Dunes, 6:20 pm to 7:20 pm. Wind calm. Minimum estimate: 10 butterflies/minute. All heading south along the lakeshore, except for the occasional 2-3 chasing each other in circles.

Sawyer, MI

Latitude: 41.9 Longitude: -86.6

Observed by: Cheryl
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