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Monitoring for Monarchs
Thursday, July 23, 2026,
9:00 am to 10:30 am
- This event has passed.

Take part in the International Monarch Monitoring Blitz by joining Harris Center ecologists Brett Amy Thelen and Nate Marchessault to survey for monarch eggs, caterpillars, and butterflies in a Harris Center-conserved milkweed patch. Our data will contribute to the Monarch Larva Monitoring Project, a community science initiative aimed at understanding and protecting this iconic insect throughout North America. No experience necessary! Come prepared for sun, ticks, and other biting insects.
9 to 10:30 a.m. in Peterborough. Directions to the exact meeting location will be provided prior to the event. Space is limited, and registration is required.
For general information about Harris Center field trips, see our Outings Information page. For more information about this particular outing, including questions about accessibility, contact Brett.

A monarch caterpillar dining on a milkweed leaf. (photo © Brett Whaley)

