Date: 09/04/2020

Number: 200

They have been roosting in our area for several days now. We get them for a couple of weeks each year.

We are on 100 acre farm in Arthur, ON and our land is organic for the most part (we don't spray but our neighboring farms do) and has been for about 15 years. We have tons of milkweed and wildflowers interspersed with and in our hay fields and we have been on the monarch migration stop for the last 3 years. Maybe longer, but 2018 was the first time I noticed them.

The roosting started around the 1st of September (that I saw) and has continued daily. I saw a roost starting yesterday (9/7/20) in one of the trees in our front yard but we were out there working on our septic bed and it was fairly early in the day so they flew off. It was a bit disappointing as it was shaping up to be a large roost.

I just estimated but there were several roosts across several trees and in more than one location.

I believe the temps have been going down between 12c and 17c at night.

The wind speed varied through the days. On 9/4/20 it wasn't windy at all and, while they were in several trees, they weren't really sheltered. Yesterday, it was fairly windy when I saw them.

Wellington North, ON

Latitude: 43.8 Longitude: -80.5

Observed by: Shannon
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