Other Friendly Sites Park Host Program Summer Park Programs Monarchs Kings of the Butterfly World Presqu'ile Provincial Park is an ideal location for studying the monarch butterfly.
Milkweed is the sole plant food of the monarch larva and is found in abundance in the park.
As with the bird migration, the peninsula tends to funnel the monarch butterfly migration as it winds along the shoreline of Lake Ontario. As well, there is an abundance of flowering plants such as goldenrod and New England aster upon which these migrants can feed. The last generation of monarchs that emerge in the fall are true migrants. These monarchs will continue on their journey - heading to a few select sites in the mountains of Mexico. On September 14th 1996, Owen Point vegetation was absolutely covered with monarch butterflies - many exhausted from trying to fly into the wind.