More than 130 original birdhouses created by artists from all over the country — including several from Wilton — will be featured at Project Return’s 18th Annual Birdhouse Auction benefiting agency programs and services. Project Return, based in Westport, empowers girls at risk to rebuild their lives by offering a safe, structured and nurturing environment.

Festivities will take place on Saturday evening, April 6, from 7 to 11 at the Rolling Hills Country Club on Hurlbutt Street. A sumptuous buffet and small plates will be accompanied by a flowing martini bar, courtesy of Tito’s Handmade Vodka, and music to “rock” by will be offered by the nonprofit pop-rock band The Subscribers.

With more than 400 people in attendance last year, $100,000 was raised; the committee is anticipating another successful year, especially with the decision to move the event, traditionally held on a Friday evening, to a Saturday night.

An impressive variety of materials, including porcelain, wood, bicycle parts, paint cans, shells, tree bark, metal, yarn, clay, and glass have been used to showcase each artist’s vision. Some of this year’s designs are personal and contemplative, like Westporter Amy Chaple’s “We Remember Sandy Hook,” while others, such as Weston artist Drew Klotz’s “Chick Flick,” using old sewing machine parts, are whimsical and sassy. Entries are traditional and contemporary, designed for outdoor use or meant to enhance indoor spaces; all reflect themes of beginning, welcome, and sanctuary.

Besides birdhouses, the eclectic collection includes numerous paintings and a smattering of framed photographs. Jewelry, lamps, coasters, Sharon Litvinoff’s colorful “Birdtown” quilt, and other inventive accessories round out the offerings.

“Migration Vacations” will feature trips and other exotic packages “to go,” including a seven-night stay in a three-bedroom condo at Palm Springs’ LaQuinta Resort and Club, and a memorable evening in New York City with a car service, dinner, and tickets to the David Letterman Show.

Information: projectreturnct.org, or call 203-291-6402.