Date: 09/05/2019

Number: 100

It started yesterday afternoon. By the evening there were at least 100. Today there are more coming. Last year we planted a milkweed in the back yard. This summer the milkweed took off and the backyard is covered in small plants. I planted many of them in pots and placed around the backyard. There were caterpillars on the plants. Our backyard is full of butterfly's!!! So beautiful!

Editor's note: contacted observer for more details on this sighting

The roost was on Sept. 5 at 7:30 pm

It was kind of a rough count. There we a few clusters in the trees.

There are many nectar sources. Rose of Sharon, Butterfly Bush, Milkweed.

The temps were a little cool. Around 13 degrees celsieus.

There was no wind, it was a very calm evening.

Oakville, ON

Latitude: 43.5 Longitude: -79.7

Observed by: Rita
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