Date: 09/09/2010

Number: 1000

On the same evening that the 10,000 monarchs were gathering for the night at Presqu'ile Provincial Park near Brighton, Ontario, about 20 km further west on the north shore of Lake Ontario at Grafton, large numbers of monarchs were also clustering.



Photo credit: http://www.northumberlandtoday.com/ArticleDisplay.aspx?e=2754185#

Editor's Note: This observer did not specify the number of monarchs present. However, based on the density of monarchs shown in the image, we are estimating a minimum of 1,000 butterflies and marking this record as a JN staff estimate.

Grafton, ON

Latitude: 44 Longitude: -78

Observed by:
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