Monarch PEAK Migration

Date: 09/12/2020

Number: 193

This was a steady migration over a course of monarch butterflies over a period of 1 1/2 hours along the shore of Lake Huron.

They were all flying south. Most were flying about 6 feet above us or even lower but there were some that were flying very high- some at the tree line and some high enough we were worried that they might be hit the seagulls. About 10% were flying about 20metres out over the lake but still flying south and following the shoreline I didn’t see any attempts to fly out directly over the lake.They were all along the shore heading south. We are on Lake Huron and it is at least 30km across the lake to Michigan.

It was a calm evening between 5:30 and 7pm. The small waves were coming from the south but I am unsure of the wind direction.

They were all just flying, mostly individually but fairly consecutively. There were a few “groups” of two or three that appeared to be flying and playing? together.

There were 4 of us all counting the Monarchs as they flew by. It is likely there were more before we realized how many were flying by and more after we stopped counting.

Ashfield-Colborne-Wawanosh, ON

Latitude: 43.9 Longitude: -81.7

Observed by: Beth
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