GROTON -- Families from all communities are invited to join Nashua River Watershed Association naturalist Diane Lauber on an expedition into forest, wetlands and vernal pools looking for signs of life in springtime. The "Spring Safari" will take place on Saturday, April 27, from 1 to 2:30 p.m., at Williams Barn, 160 Chicopee Row.

This property has diverse ecosystems where we can see what plants are budding and blooming, listen for bird songs as they seek partners and identify their territories, and observe signs that animals are nesting and raising their young.

This adventure is appropriate for children of all ages and adults. The cost is $6 per person or $18 per family for members, $8 per person or $24 per family for nonmembers. Registration is required. To register, contact Stacey Chilcoat, NRWA River classroom director, at 978-448-0299, or email The NRWA is a nonprofit environmental organization that depends on memberships for support.