* Groton Farmer’s Market Fridays 3-7 p.m. at the Williams Barn, 160 Chicopee Road. A variety of home-grown products plus these live musicians: Sept. 4, Shea and Finn McGillivray; Sept. 11, Bob Leger; Sept. 18, Dick Baumer; Sept. 25, Back to the Garden.
* The Groton Firefighters Association’s annual Labor Day Muster and BBQ, Monday, Sept. 7, begins with an 11 a.m. parade, with food available at noon, and muster activities at 12:30 p.m. at the H&V field, 250 Townsend Road, West Groton. Boys Scout Troop 1 will hold a yard sale from 8 a.m. to 2 p.m. in conjunction with the event. Donation drop-off: Wednesday, Sept. 2, 6-8 p.m. or Sunday, Sept. 6, 9 a.m. to 5 p.m. at H&V field. If you need a pick-up at your home, contact Natalie Marsh at 978-448-6481 or firstname.lastname@example.org. No gas powered equipment, textbooks, mattresses, car seats or electronics of any kind accepted.
* Groton Council on Aging WALKS, Tuesdays and Thursdays, 10:30-11:30 a.m., beginning Sept. 8 at the Peter Twomey Center, behind the middle-school. All adults welcome. (No walk on Sept. 29.)
* Nashoba Paddler, 398 West Main St., Groton, is offering an Oxbow National Wildlife Refuge Paddle, Saturday, Sept. 12, 10 a.m. to 2 p.m., and Full Moon Canoeing, Sunday, Sept. 27, 6:30-9:30 p.m. For costs and required registration www.nashobapaddler.com.
* GrotonFest 2015 is scheduled for Saturday Sept. 19, 10 a.m. to 5 p.m. (Rain date Sept. 20), Legion Common, Hollis Street. More than 150 business, nonprofit and artisan booths and all kinds of amazing food, plus continuous entertainment. FREE. Handicapped accessible.
* The Nashua River Watershed Association Heart Healthy Trails Project: Exploring Trails in Groton, Tuesday, Sept. 22, 6 p.m. A short guided walk at two sites: Sabine Woods and General Field/Surrenden Farm. Each of these walks is 1.5 miles or less, and is easy to moderate in activity level. This trail tour is free, open to all ages and all communities, but no dogs. Park at the Groton Place parking area off Route 225 (West Main Street) in Groton, on the left just before you cross the bridge over the Nashua River. Pre-registration is not required, but appreciated for planning purposes. To pre-register, contact Al Futterman, at 978-448-0299, or email AlF@NashuaRiverWatershed.org .
In the area
* Nighthawk Migration Survey, Saturdays, Sept. 5 and 12, 5:30 p.m. to dark. Join the Friends of the Oxbow NWR at Still River Depot Road in Harvard for an evening observing the fascinating migration of the Common Nighthawk through the Nashua River Valley. In the past years, when the weather and insects cooperated, flocks of as many as 100 birds were seen overhead. Information: Ada at email@example.com.
* Walden to Wachusett Weekend: Celebrating Thoreau Saturday and Sunday, Sept. 12 and 13. Explore the area Thoreau so loved with family-focused activities in the Concord area, at Walden Pond and on Mount Wachusett in Princeton. www.freedomsway.org.
* Middlesex Conservation District Fall Bulb and Perennial Sale will be held Friday, Sept. 18, 3-6 p.m. and Saturday, Sept. 29, 8 a.m. to noon at the Verrill Farm, 11 Wheeler Road, Concord. middlesexconservation.org
* The Nashua River Watershed Association Heart Healthy Trails Project: Exploring Trails in Harvard and Ayer, Tuesday, Sept. 29, 5:30 p.m. A short guided walk at two sites: the Tank Road trail in the Oxbow National Wildlife Refuge in Harvard, and Pine Meadow Conservation Area in Ayer. Each of these walks is 1.5 miles or less, and is easy to moderate in activity level. This trail tour is free, open to all ages and all communities, but no dogs. Meet in the parking area at the bottom of Still River Depot Road in Harvard. Pre-registration is not required, but appreciated for planning purposes. To pre-register, contact Al Futterman, at 978-448-0299, or email AlF@NashuaRiverWatershed.org.
Authorization for the Federal Land and Water Conservation Fund runs out Sept. 30, 2015. Conservation organizations all over America are urging citizens to contact their legislators to renew this program, which has financed over 40,000 projects since 1964 primarily by offshore oil royalties, not taxpayer dollars.
This list is compiled by Mary Metzger firstname.lastname@example.org and may be freely shared.
After 18 months, this will be the last edition of the Swarm of Drumlins.