FRIDAY, MAY 9, AND SATURDAY, MAY 10

COUNTRY DAY SCHOOL PRESENTS "THE MARVELOUS LAND OF OZ": May 9, at 7 p.m., May 10, at 3 and 7 p.m. CDS Jr. Drama grades 3,4, and 5. This is a story based on the events in Frank Baum's' second Oz book involving a boy named Tip. He travels throughout Oz and meets many wonderful and colorful characters. Price $5 per ticket.

SATURDAY, MAY 10

Groton Lions Club plant sale: The Groton Lions will hold its 38th annual Mother's Day plant sale from 7 a.m. to 2 p.m. in front of the Prescott School on Main Street.

May 10 and 18 -- Birding at the Oxbow: Meet at 7:30 a.m. at the parking lot to the Oxbow Refuge at the end of Still River Depot Road in Harvard. This is an exciting time of the year with so many birds nesting or passing through on their way further north. Bring binoculars if possible. Be prepared for some muddy patches on the trails. Bird experts Dick and Peggy Knowlton will again be leading these popular events. Birders of all levels are welcome. Please pre-register with Rona at 978-779-2259 or by email at ada.friendsoftheoxbownwr@gmail.com. Programs sponsored by Friends of the Oxbow National Wildlife Refuge.

Groton Garden Club's annual plant sale: The Groton Garden Club will hold its Annual Plant Sale from 8:30 a.m. to noon at the Groton Town Hall.

Birdwatching workshop for children and their families: The Nashua River Watershed Association and the Groton Public Library invite families to join us for a free birdwatching workshop for children and their families from 8:30 a.m. to 10 a.m. Bring binoculars and field guides if you have them. The workshop is structured for ages 5 -12 years and their families, backpack babies are welcome. This free public program is made possible by a grant from the Groton Trust Funds' Lecture Fund. Space is limited and pre-registration is required. Directions to the meeting place will be provided upon registration. To register, please contact NRWA River Classroom Director Stacey Chilcoat at 978-448-0299 or email riverclassroom@gmail.com.

Festival and Ducky Wucky Race: Apple Blossom Festival and Ducky Wucky River Race, 10 a.m. to 4:30 p.m., Harvard Common. Festival featuring arts and crafts, and live music and entertainment all day. Last chance to buy your ticket to the Ducky Wucky River Race and win dinner for two anywhere in the world. Ducky Wucky River Race starts at 4:30 p.m. off Still River Depot Road, Harvard. Sponsored by Ayer Rotary Club. All the details at www.duckywucky.org.

SATURDAY, MAY 17

Plant sale: Annual plant sale by Pepperell Garden Club -- 8 a.m. to noon, at (NEW location) the Pepperell Senior Center, Route 111, on Nashua Road. Beautiful healthy unusual annuals, member's hardy perennials, wildflowers and groundcovers, shrubs and trees, vegetables and herbs, and hanging baskets. Plenty of parking at the Senior Center location. This plant sale is always a sell out. Rain or shine. For more info: Lisa 433-3672.

Indoor yard sale: Trinity Church Congregational, 14 Wattaquadock Hill Road, Bolton (just off of Route 117), will host its free, indoor yard sale from 9 a.m. to 3 p.m. Household goods, toys, books, movies, sporting goods, clothing, more. All items are free. Enjoy complementary refreshments as well! www.trinitybolton.org or 978-779-5517.

Youth fishing derby: registration at 8:30 a.m., derby from 9 a.m. to noon, Mirror Lake, Devens. Prizes awarded, open to ages six to 15 years, free. For info, call 978-772-8875 or email kwalsh@massdevelopment.com.

Spring plant exchange: 10 a.m. to noon, First Church Unitarian, Littleton (19 Foster St., across from the firehouse). Perhaps you have a cluster of new-growth hostas or other ground plants that need separating and sharing? OR fresh wet cuttings of plants that can be starters for someone? OR an outdoor or indoor plant you'd like to exchange with someone? OR a garden feature (fountain, figurine, borders, etc.) you no longer need? Come share, exchange and visit with other Plant People, get a creative start on warm weather. No fee involved, open to the public. For info: AEC@fculittle.org.

Nashua Flute Choir Concert at St. Andrew's Episcopal Church: 7 p.m. The Nashua Flute Choir, an ensemble of 16 accomplished flutists, will present a concert at St. Andrew's in Ayer. The featured soloist is Daesik Cha, organist at St. Andrew's. The concert program includes jazz, classical, modern and popular music. The ensemble includes all sizes of flutes from the piccolo to the 7-foot-tall contrabass flute. Admissions is $15 for adults, $10 for seniors and students and $25 for families. The Nashua Flute Choir is a not-for-profit organization.

THURSDAY, MAY 22

Community Forum at Trinity Chapel: 186 Center Road, Shirley, 7-9 p.m. The program will feature presentations and discussion of the many diverse outreaches of the Episcopal Diocese of Massachusetts: Common Cathedral -- An outdoor church for people experiencing homelessness and their friends, including worship, common art, city outreach and street ministry; Life Together -- Up to 30 interns are selected each year to serve for 10 months in a number of institutions and agencies. Social time and light refreshments, 7-7:30 p.m.; program, questions and answers, 7:30-9 p.m.

SATURDAY, MAY 24

Spring migrants bird walk: Join Nashua River Watershed Association's Mark Archambault (rain date May 25), at 7 a.m. for a free guided field walk to look for spring migrants and nesters. We'll meet at the NRWA River Resource Center, 592 Main St. (Route 119) in Groton, then head out to prime birding locations around Groton including the General Fields/Surrenden Farm. The walk is open to birders of all experience levels; appropriate for ages 12 and up. Bring binoculars if you have them. Wear comfortable walking shoes, and consider use of insect and tick repellent measures. Pre-registration is encouraged and for updates related to weather postponement -- contact Mark Archambault at 978-448-0299, or email MarkA@NashuaRiverWatershed.org.