Concerts

COLONIAL AND REVOLUTIONARY ERA MUSIC -- 7:30 p.m. tomorrow. Christ Church Concerts presents David and Ginger Hildebrand performing -- on authentic and reproduction early-American instruments, including violin, Baroque guitar, hammered dulcimer, spinet and English flute -- music and vocals from the 18th, 19th and early 20th centuries. Christ Church, 110 E. Charles St., La Plata. Free. 301-932-1051.

NAVY BAND -- 3 p.m. Saturday. Navy specialty band "Harbor Winds," a clarinet ensemble, performs in honor of Armed Forces Day. Lexington Park Library, 21744 Coral Dr., Lexington Park. Free. 301-863-8188 or stmaps@somd.lib.md.us.

CONCERT AND CHAMBER CHOIRS -- 8 p.m. Saturday. College of Southern Maryland's Southern Maryland Singers and Chesapeake Sound perform together in annual spring concert, featuring "Chansons Des Roses" by Morten Lauridsen and works by Daniel Gawthrop and Moses Hogan. College of Southern Maryland, Fine Arts Center, 8730 Mitchell Rd., La Plata. $5. 301-934-7828, 301-870-3008, 301-884-8131, Ext. 7828 or BxOffc@csmd.edu.

COSMIC CONCERT -- 7:30 p.m. Sunday. The Chamber Orchestra of Southern Maryland in Concert in its season finale featuring violinist Jose Cueto playing Mendelssohn's Violin Concerto. Other pieces performed by COSMIC include Overture to "The Italian in Algiers" by Rossini, Prokofiev's "Classical Symphony" and Ravel's "Bolero." St. Mary's Ryken High School, Performing Arts Center, 22600 Camp Calvert Rd., Leonardtown. Individuals, $8; seniors and students, $7; family, $16. Tickets can be purchased at the door or in advance at Musically Yours, 23310 Three Notch Rd., California. 301-373-5277.

"ALL PRAISE MUSIC" CONCERT -- 7:30 p.m. Monday. Three spirituals performed by Moses Hogan and familiar Broadway show tunes performed by St. Maries Musica. St. Paul's United Methodist Church, 25550 Point Lookout Rd., Leonardtown. Free. 301-475-3381.

Dance

SQUARE DANCING -- 7:30-9:30 p.m. Fridays. Aqua Squares Square Dance Club of Calvert County holds a dance. Southern Community Center, 20 Appeal Lane, Lusby. $5. 410-586-3587 or 301-373-2207.

SQUARE DANCING -- 7:30-9:30 p.m. Fridays. Dances are presented by the Southern Merry-Landers Square Dance Club. John Hanson Middle School, 12350 Vivian Adams Rd., Waldorf. $5.50; members, $4. 301-893-1974.

DANCE CLASSES -- 6-7:30 p.m. Sundays. Held by Southern Maryland Modern Dance Collective for those 13 and older. Black Belt Academy, Wildewood Shopping Center, Wildewood. Drop-in fee, $10; 10-class card, $65. 301-862-1072.

For Children

LITTLE TYKES RACE -- 10-10:30 a.m. Saturday. Ages 1-4 race their favorite riding toy. Everyone who crosses the finish line receives a prize. Southern Community Center, 20 Appeal Lane, Lusby. Free. Registration required. 410-586-1101.

STUFFED ANIMAL CIRCUS -- 10:30-11:30 a.m. Saturday. Face painting, balloon animals, games and a craft for ages 2-5. Bring favorite stuffed animal for a circus parade. Southern Community Center, 20 Appeal Lane, Lusby. $5. Registration required. 410-586-1101.

KIDS DAY AMERICA/INTER-NATIONAL -- Noon-3 p.m. Saturday. Tenth annual event sponsored by chiropractic offices worldwide to provide information on crime prevention, child safety, environmental awareness, free spinal exams and scoliosis screenings, with McGruff the Crime Dog, Sparky the Fire Dog, free fingerprinting and child identification cards, K-9 Unit dog demonstrations, pony rides, face painting, moonbounce, rock climbing. HealthSouth Robinson Chiropractic Clinic, 4140 Crain Hwy., Waldorf. Free. 301-870-5656.

COLONIAL CHILDREN'S DAY -- Noon-4 p.m. Saturday. Participate in 18th-century games and hands-on activities including embroidery, dipping candles, cooking, spinning, blacksmithing and hear stories about animals. Earn a "Colonial Child Apprentice" certificate. National Colonial Farm in Piscataway, 3400 Bryan Point Rd., Accokeek. Children, $2; adults, 50 cents. 301-283-2113, Ext. 925 or www.accokeek.org.

SATURDAY SPECIAL STORY TIME -- For all ages, stories, crafts and singing. Every Saturday, throughout the year. Free.

* 10 a.m., Potomac Library, 3225 Ruth B. Swann Dr., Indian Head. 301-375-7375.

* 1 p.m., P.D. Brown Library, 50 Village St., Waldorf. 301-645-2864.

* 3 p.m., La Plata Library, 2 Garrett Ave., La Plata. 301-934-9001.

PRESCHOOL STORY TIME -- 10 and 11 a.m. and 1:30 p.m. Sponsored by Citizens for Charles County Public Library for ages 2-5 through the last week of May. Free.

* Tuesdays, Potomac Library, 3225 Ruth B. Swann Dr., Indian Head. 301-375-7375.

* Wednesdays, P.D. Brown Library, 50 Village St., Waldorf. 301-645-2864.

* Thursdays, La Plata Library, 2 Garrett Ave., La Plata. 301-934-9001.

THOMAS THE TANK PLAY DAY -- 10-10:30 a.m. Wednesday. Play with trains and enjoy a snack. Ages 12-24 months. Snack provided. Southern Community Center, 20 Appeal Lane, Lusby. $3. Registration required. 410-586-1101.

SPRING IS FOR FROGS -- 10-11 a.m. or 2-3 p.m. next Thursday. Ages 3-5 learn about the color of frogs and what they sound like. Snack provided. Dress appropriately for the weather. Battle Creek Cypress Swamp Nature Center, 2880 Grays Rd., Prince Frederick. $3. Reservations required. 410-535-5327 or www.calvertparks.org.

A DAY ON THE FARM -- 10-11 a.m. next Thursday. Experience farm life and learn about farm animals. Dress in farm attire. Ages 2-5. Southern Community Center, 20 Appeal Lane, Lusby. $3. Registration required. 410-586-1101.

STORY TIME -- 6:30 p.m. Thursdays. For all ages, enjoy stories in the Children's Area. Leonardtown Library, 23250 Hollywood Rd., Leonardtown. Free. 301-475-2846 or stmaps@somd.lib.md.us.

BABY PHOTO CONTEST -- Submit photos of children ages 1 week-4 years to be judged in a variety of categories including creativity, uniqueness, funniness, cuteness and messiness. Drop off or send photos through May 17 -- properly identified on back with name, address, age and phone number -- to the Southern Community Center, 20 Appeal Lane, Lusby, Md. 20657. Free. 410-586-1101.

Exhibitions

ART BLOOMS EXHIBITION -- 11 a.m.-4 p.m. tomorrow, Saturday and Sunday. "Art Blooms at the Mattawoman," a collaborative exhibition of the artists at Mattawoman and the Charles County Garden Club featuring interpretive arrangements representing the arrival of spring. On display in the gallery, 11 a.m.-4 p.m. Fridays-Sundays, through May 23. Mattawoman Creek Art Center, Smallwood State Park, Marbury. 301-743-5159. www.mattawomanart.org

ARTIST'S SHOW -- 10 a.m.-5 p.m. daily. The artwork of Takoma Park artist Fritzie Siedler on display through June 2. Wylde Women Gallery, 26005 Point Lookout Rd., Leonardtown, inside the Maryland Antiques Center. Free. 301-475-1960 or www.wyldewomen.com.

Lectures

And Literature

PEACE CORPS INFORMATION SESSION -- 10 a.m.-noon today. Learn about service opportunities with representatives from the Peace Corps. Sponsored by Volunteer Southern Maryland. College of Southern Maryland, CC Lobby, 8730 Mitchell Rd., La Plata. 301-934-7642, 301-870-3008, or 301-884-8131, Ext. 7642.

NATURAL MEDICINE SEMINARS -- 6:30 p.m. today. Third in a series on alternative medical care offered through the St. Mary's County Office on Aging. A discussion of available referral and support systems to help improve and maintain optimum health. Future topic: Yoga, June 10. Charlotte Hall Library, 37600 New Market Rd., Charlotte Hall. $5. Registration required. 301-737-5674.

SEPARATION, DIVORCE AND CHILDREN -- 5-8 p.m. Wednesday and Thursday. "TransParenting" seminar offered by Walden/Sierra Inc. for parents concerned about the impact of divorce on their children. Learn skills to handle the changing needs of children that result from divorce. Facilitated by licensed counselors. Walden/Sierra, 26845 Point Lookout Rd., Leonardtown. $120 fee includes course workbook and refreshments. 301-863-6677.

EVENING OF HISTORY -- 7 p.m. Wednesday. Hear the history of St. Leonard with Sara Ebenreck Leeland, author of "St. Leonard: A Maryland Tidewater Community." Book available on site for purchase and signing. Calvert Library, 30 Duke St., Prince Frederick. 410-535-0291 or 301-855-1862.

FAMILY EVENING STORY TIME -- Calvert Library branches host special guests from the county's emergency personnel. 7 p.m. Free.

* Wednesday. Featuring Sheriff Mike Evans. Calvert Library, 30 Duke St., Prince Frederick. 410-535-0291 or 301-855-1862.

* Thursday. Featuring a member of the Solomons Volunteer Rescue Squad and Fire Department. Southern Library, 20 Appeal Lane, Lusby. 410-326-5289.

* Thursday. Featuring a member of the North Beach Volunteer Fire Department. Twin Beaches Library, Captain's Quarters, 3819 Harbor Dr., Chesapeake Beach. 410-257-2411.

* Thursday. Featuring a member of the Dunkirk Volunteer Fire Department. Fairview Library, 8120 Southern Maryland Blvd., Owings. 410-257-2101.

BOOK DISCUSSIONS -- Join area book groups to discuss recent readings. Free. Various locations.

* 2-3:30 p.m. next Thursday. Discuss "Atonement" by Ian McEwan. Southern Library, 20 Appeal Lane, Lusby. 410-326-5289.

CALVERT CONVERSATIONS -- 10 a.m. next Thursday. Get together in a casual format to discuss what's happening around the county. Coffee provided but bring your own mug. Southern Library, 20 Appeal Lane, Lusby. 410-326-5289.

Special Events

SCHOLARSHIP BANQUET -- 6 p.m. tomorrow. Seventh Annual Gala by the Bay, sponsored by Concerned Black Men of Calvert County, with guest speaker Lt. Gov. Michael S. Steele. A fundraising event for CBM's scholarship fund. Three scholarships will be awarded at the gala to Calvert County high school students. Rod 'N' Reel Restaurant, Route 261 and Mears Avenue, Chesapeake Beach. Cocktail reception, hors d'oeuvres, dinner and live entertainment. $65. 410-414-5009.

SILENT AUCTION -- 6:30-8:30 p.m. tomorrow. More than 90 quality items to bid on including Persian rugs, Redskins tickets, hotel getaways, ski packages and theater tickets. Sponsored by the Sunderland Elementary Family and School Organization to benefit programs at the school. Sunderland Elementary, 150 Clyde Jones Rd., Sunderland. Free admission. 301-855-0657.

AUDUBON SOCIETY FIELD TRIP -- 8 a.m. Saturday. Recommended for beginning birders, a half-day trip with leader Fred Burggraf through parts of the Myrtle Grove Wildlife Management Area to look for spring migrants and woodpeckers. Call for start location at Myrtle Grove. 301-934-8042.

WORLD GYM GRAND OPENING -- 9 a.m.-2 p.m. Saturday. Public gets a free opportunity to look at the equipment, classes, locker rooms, coffee and juice bar, staff and trainers and other amenities available at the new gym. World Gym International, 2190 Solomons Island Rd., Prince Frederick. 410-414-9001.

ANTIQUES APPRAISAL FAIR -- 9 a.m.-5 p.m. Saturday. Appraisers in jewelry, decorative arts, coins, dolls and glassware on hand. Maximum of three hand-carried items appraised per person at $10 per item. College of Southern Maryland, Building C, 22950 Hollywood Rd., Leonardtown. Admission, $10. Fair will also feature woodworking workshops, a cheese demonstration by Cafe des Artistes and a food and wine pairing demonstration by Ingleside Winery. Cost for cheese demonstration is a separate $25 fee. 301-934-7604, 301-870-3008 or 301-884-8131, Ext. 7604.

SPECIAL OLYMPICS INSPIRATION WALK -- 9-11 a.m. Saturday. Participants pledging $25 or more receive an event T-shirt and will be entered into prize drawings. Water and snacks provided. Registration forms available at www.somdcalvert.org. 410-35-2857 or 410-535-7387.

NATURE HIKE -- 10 a.m.-2 p.m. Saturday. Hike the woods of the Glendening Nature Preserve to observe spring flowers. Adults and ages 10 or older. Meet at the Jug Bay Wetlands Sanctuary Center, 1361 Wrighton Rd., Lothian, and car pools will drive to site. Free. Reservations required. 410-741-9330 or www.jugbay.org.

SHERIFF'S OFFICE OPEN HOUSE -- 10 a.m.-3 p.m. Saturday. Safety Talk with McGruff the Crime Dog, 10 a.m.; guided tours of headquarters, 10:30 a.m. and 1 p.m.; guided tours of Detention Center, 11:30 a.m. and 2 p.m.; Police Recognition Ceremony, noon; Vehicle Assault Extraction demonstration, 12:30 p.m.; K-9 Unit demonstration, 1:30 p.m.; Less Lethal demonstration, 2:30 p.m.; Sheriff David Zylak address, 3 p.m.; and ongoing activities including child safety seat check points, emergency vehicle displays, DWI simulation glasses. St. Mary's County Sheriff's Office, 23150 Leonard Hall Dr., Leonardtown. 301-475-4200 or www.firstsheriff.com.

NEIGHBORHOOD CARNIVAL -- Noon-7 p.m. Saturday. Carnival games, live entertainment, sporting events, clowns, food and craft vendors. Sponsored by the New Community Youth Department. New Community Church, 12435C Mattawoman Dr., Waldorf. 301-843-0551.

SALOME HOWARD COMMUNITY SERVICE DINNER -- 2-5 p.m. Saturday. Hosted by the Akoben Political Action Committee to recognize the 50th anniversary of the Supreme Court's Brown v. Board of Education decision. Metropolitan United Methodist Church, 3385 Metropolitan Church Rd., Indian Head. $35. Reservations recommended. 202-215-4165.

ART AUCTION -- 6:30 p.m., preview; 7:30 p.m., auction, Saturday. Paintings by Rockwell, McKnight and Delacroix, along with animation cells and sports memorabilia to bid on. Wine, cheese and cake will be served. Proceeds benefit Christmas in April-Charles County. St. Paul's Episcopal Church, Piney Church Road, Waldorf. $10 or $15 per couple. 301-392-0202.

CRITERIUM BICYCLE RACES -- 8 a.m.-4 p.m. Sunday. Acceleration and bicycle handling are the emphasis in this annual spectator event. Children and youth invited to bring own tricycles and bicycles for free bike races at 11:30 a.m. Helmets required. Sponsored by Patuxent Velo Bicycle Racing Club, which makes a donation to Special Olympics of St. Mary's County with proceeds from the competitive racing entry fees. Streets of downtown Leonardtown. 410-394-2770, 301-475-9791 or www.paxvelo.com

RIDE FOR HOSPICE -- 9 a.m. Sunday. Motorcycles and classic cars travel through Southern Maryland in this event to benefit area hospices. Ride begins at Leonardtown High School, 23995 Point Lookout Rd., Leonardtown. Call Hospice of St. Mary's for details. 301-475-2023.

PARK OPEN HOUSE -- Noon-5 p.m. Sunday. Local artists display recent "Art From the Park," nature walks at 12:15 and 2:30 p.m., history walks at 1:30 and 3:45 p.m. to the Mount Aventine manor house and the Chapman family cemetery. Chapman State Park, Chapman's Landing Road, Indian Head. Free. 301-753-6754.

FAMILY DAY -- 12:30-3:30 p.m. Sunday. Explore a 100-year-old railroad car, play games popular in the early 1900s, dress in period clothing for pictures, see a performance by the Diane Herbert All-Star Dancers at 1 p.m. and a magic show with local magician Pat Nutter at 2 p.m. Chesapeake Beach Railway Museum, 4155 Mears Ave., Chesapeake Beach. 410-257-3892.

DANCING DRAGONFLIES -- 1-3 p.m. Sunday. Watch the dragonflies emerge from water to fly. All ages. Jug Bay Wetlands Sanctuary, 1361 Wrighton Rd., Lothian. Entrance fee: adults, $3; seniors and students 17 and younger, $2. Reservations required. 410-741-9330 or www.jugbay.org.

LIVE SEAHORSE EXHIBIT -- 10 a.m.-5 p.m. daily, through Oct. 31. Seahorses from around the globe. Calvert Marine Museum, 14200 Solomons Island Rd., Solomons. Adults, $5; seniors, $4; ages 5-12, $2; 4 and younger, free. 410-326-2042, Ext. 49.

KARAOKE -- 8 p.m.-midnight Saturdays. Proceeds benefit local military veterans and charities. VFW Post 1800, Indian Head. 301-743-5109.

Theater

"DON'T DRINK THE WATER" -- 8 p.m. tomorrow and Saturday, 3 p.m. Sunday. Woody Allen's cold war comedy is presented by the Port Tobacco Players. Charles County Government Center, 200 Baltimore Ave., La Plata. Adults, $12; seniors and students, $10. Reservations recommended. 301-932-6819.

Plan Ahead

QUILT AND NEEDLEWORK SHOW -- 10 a.m.-4 p.m. May 21-23. Fourteenth Annual Southern Maryland event featuring quilting and needlework displays, demonstrations, raffles, quilt appraisals, vendors, plant sale. Sotterley Plantation, 44300 Sotterley Lane (Route 245 north), Hollywood. Adults, $7; ages 11 and younger, free. 301-373-2280 or www.sotterley.org.

CALVERT COUNTY, FROM TIME TO TIME -- 8 p.m. May 21-22, 2 p.m. May 23. Trace the county's history from prehistoric times to present through an original script with music and dance prepared to celebrate the county's 350th anniversary. Mary Harrison Cultural Arts Center, 2950 Chaneyville Rd., Owings. Adults, $5; seniors and children, $3. Tickets available at the county courthouse, Fairview and Solomons visitors centers and all Calvert Bank and Trust branches. 410-535-4583.

BENEFIT TALENT REVUE -- 8 p.m. May 22. Local musicians, dancers and singers present an evening of varied entertainment including country and bluegrass, Broadway hits, jazz, piano, comic opera, dance and storytelling. Proceeds to help purchase pediatric resuscitation kits for all rescue squads in St. Mary's County. A fundraising project of the Woman's Club of St. Mary's County. Great Mills High School, 21130 Great Mills Rd., Great Mills. $15. 301-475-3225 or 301-475-9039.

CANOE THE MARSH -- 11 a.m.-3 p.m. May 29. Learn about wetland ecology while canoeing the wetlands along the Patuxent River. Canoe instruction and equipment provided. Mail $5 per person in advance, with name, address, phone contact, number of people and ages of children (must be at least age 7). Jug Bay Wetlands Sanctuary, 1361 Wrighton Rd., Lothian, Md. 20711. 410-741-9330 or www.jugbay.org.

-- Compiled by SUSAN BARTON

To Submit an Item

E-mail: bartons@washpost.com

Fax: 301-934-1088

Mail: Entertainment, Southern Maryland Extra, The Washington Post, 100 N. Oak Ave., La Plata, Md. 20646

Details: Send announcements and photos, noting the date, time, address and cost of the event, along with a phone number. The deadline is 14 days before publication. Events are listed as space permits.