Today, April 1, 2013 (this not an April fool's joke) I was talking with some visitors at the Thoreau house replica at the park (Walden Pond) and a small butterfly that looked like a Monarch butterfly flew around us.
Courtesy of Jennifer Ingram
Visitor Services Supervisor
Walden Pond State Reservation
The observer's e-mail address will not be disclosed.
Contact will be made through a web-based form.