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Upcoming Events, Walks and Programs

Click on an event in the calendar to see the details on the event.

Note that most of our Monthly Meetings are recorded. Links to the recordings hosted by SudburyTV can be found on the Past Event Videos page.

Saturday, August 1, 9:00 AM - Noon

APT Invasive Plant Removal Work Party

Help keep the refuge clear of invasive plants! On Saturday, August 1st, APT (Assabet Pulling Together) will be working from 9AM to Noon. Meet at the Winterberry Way turnaround parking area.

Our target species will be Glossy Buckthorn, Black Locust and Purple Loosestrife. Work sites will be Winterberry Way wetlands, Patrol Road, Otter Alley and Taylor Way.

Wear long pants and heavy garden gloves and bring pruning shears, insect repellent and water.

Please email if you can help, but last minute drop-ins are also welcome! Thanks to our hardworking volunteers. Let's keep making room for natives!

Saturday, August 8, 8:00 - 10:00 AM
Saturday, August 15, 8:30 - 10:30 AM
Saturday, August 22, 9:00 - 11:00 AM

Refuge Volunteer Mornings

Get outside and get some exercise by helping spruce up the refuge. For grounds keeping we will be working on the gardens at the front entrance and visitor center. For trail maintenance we will be clearing up the trails. Bring a snack, water, sunscreen, bug repellent, work boots, gloves and if you have some favorite tools.

Please contact Kizette at or 978-562-3527 x 117to RSVP and for further details.

Sunday, August 16, 6:30 - 8:30 PM

Nature Walk: A Sense of Place at Great Meadows NWR

Join naturalist Cherrie Corey for her continuing exploration of the Great Meadows Wildlife Refuge landscape. Warm summer nights and full moon light ... join Cherrie for an evening walks to explore the refuge on the edge of a long summer's day. Birds and beavers stir and settle, herons feed, and great egrets fly to their roosts. Hawk moths come out to feed on evening primrose blossoms and lotuses glow in the moonlight. The air is heavy with floral scents and rainbows may appear as storms pass along the horizon. It's a magical time to be out together. Bring binoculars and cameras if you have them. All ages welcome.

For each walk, a $5/person voluntary donation is requested. No pre-registration required. Meet at the information kiosk by the parking lot, Great Meadows NWR in Concord (Monsen Rd, off Rte. 62, driveway on left where road curves right). Questions? see sense-of-place-concord.blogspot, email or call 978-760-1933. Co-sponsored by the Friends of the Assabet River NWR, Musketaquid Arts and Environment Program, and the U.S. Fish and Wildlife Service.

Friday, August 28, 10:30 - 11:30 AM

Refuge Fledglings Hour — Nature-themed Program Series for Kids

Join Refuge staff for Refuge Fledglings Hour, a nature-themed program series that includes crafts, stories, and games or songs that relate to a different topic each month. Check the Assabet River National Wildlife Refuge facebook page for this month’s theme.

Programs are usually held the 4th Friday of every month from 10:30am – 11:30 AM. For 2 to 5 year olds; siblings welcome. Held at the Visitor Center. Program is limited to 25 kids so registration is required; please contact Kizette at or 978-562-3527 x 117 to RSVP.

Saturday, August 29, 6:00 - 8:00 PM

Nighthawk Migration

Once a very familiar nesting bird in Massachusetts, the Common Nighthawk has been declining in numbers for the last century. It is also usually an inconspicuous bird with its drab brown coloration and nocturnal habits. However thousands of the birds can still be seen migrating through Eastern Massachusetts in late August in loose flocks far overhead at dusk, and sometimes feeding much closer to the ground. Local bird enthusiasts have used this annual opportunity to count numbers of Nighthawks as they travel through our area and maintain a database of migration numbers in the Sudbury/Assabet/Concord River watersheds, and beyond.

We will use this session to see if any Nighthawks migrate through or feed over Assabet River NWR. Nighthawk identifying tips will be covered, including how to distinguish them from other evening flyers, especially swifts, swallows and bats. We may also hear and see beavers, muskrats or owls.

Contact John to RSVP by 3pm on Thursday, August 27th at 3pm at or call 978-201-6028; limited to 20 participants.


Outdoors This Week

The Friends posts our events to Outdoors This Week, a weekly listing of outdoor activities located west of Boston sponsored by local environmental organizations. Click here to subscribe.