Date: 09/16/2020

Number: 200

Very close to the beach-Lake MI
Preferred one tree but several on surrounding trees

I don’t know when the roost first formed. Reports from friends said they could be seen flying in that night.

We estimated 200, started to count but couldn’t [keep counting] since they would land and flit around. They were mainly in this large tree but several were on nearby trees.

There were ivy blooms on this tree and the butterflies seemed to be landing, eating, then nestling in!

The wind coming off the lake was light and they appeared to be shielded.

New Buffalo, MI

Latitude: 41.8 Longitude: -86.8

Observed by: Melissa
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