Date: 09/09/2010

Number: 15000

on September 9th, 10,000 to 15,000 monarchs were counted by members, just east of Port Burwell.

The numbers were estimated by counting and extrapolating over a three-hour period from 1 to 4pm by our Otter Vally Naturalists, so actual numbers were likely higher. Numbers passing by, not a cluster. And this was at Ron's Monarch Landing property.

The Port Burwell Provincial Park and Port Burwell Memorial Park are within the town.

We had a big cluster observed in the same evening (9/9) in the Memorial Park and then watched them take off the next morning.

Monarchs are still passing by today (9/15) in strength.

Port Burwell, ON

Latitude: 42.7 Longitude: -80.8

Observed by:
Contact Observer

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