TODAY

Earth Day Celebration: from 12:30 a.m. in Bridgton

Loon Echo Land Trust is offering a slate of events to celebrate Earth Day and the land trust’s 25th anniversary. Starting at 12:30 a.m., they’ll gather to view the Lyrid meteor shower atop Hacker’s Hill. Then at 9 a.m., they’ll enjoy the hawk migration from the mountain, followed by the Bald Pate Mountain/Bray’s Brew Pub celebration hike at 3 p.m. The gate at Hacker’s Hill will be open from 12:30 to 3 a.m., and snacks will be provided for the meteor shower viewing. Hacker’s Hill is off Quaker Ridge Road in Casco, accessible by routes 11 or 302. For more information, call 647-4352.

Signs of Spring: 2 p.m. in Freeport

Wolfe’s Neck Woods State Park’s spring program series features lessons in nature. Participants will search for signs of spring in newly arrived birds, fragrant trailing arbutus and other wildflowers. Meet at the benches by the second parking lot. Free with park admission, which is $1 for ages 5 to 11, $3 for those 12 to 64, and $4.50 for non-residents. Call 865-4465.

TUESDAY

Lewiston Bird Walks: 6 a.m. in Lewiston

The Stanton Bird Club of Lewiston/Auburn begins its series of Tuesday morning bird walks. Each of the five bird walks will start at 6 a.m. and go from the Bates College campus to Riverside Cemetery. Meet at Hathorn Hall on Campus Avenue. No cost, all welcome. Call 782-5238.

SATURDAY

Tour Organic Farm: 10 a.m. in Warren

The Georges River Land Trust is leading a tour of Hatchet Cove Farm. Learn farm skills and enjoy this 26-acre, family-run, protected organic farm. Free and open to the public. Hatchet Cove Farm is at 1133 Finntown Road, Warren. Call 594-5166.

Take a Hike: All Day in Hinckley

L.C. Bates Museum is hosting a display on the Appalachian Trail. Learn about the subculture of long-distance hiking through this exhibition explained by veteran hiker Theresa Harley-Wilson. The photos and stories on display examine the joys and struggles hikers experience on long-distance trails. The museum is open 10 a.m. to 4:30 p.m. Wednesday through Saturday. It’s on Route 201 on the Good Will-Hinckley Campus. All welcome. Call 238-4250 for more information. 

— Compiled by Deirdre Fleming