Sunday, March 17.   1-3 p.m.   Thorn Creek Nature Center.   $15 per house; limit one per person.   All ages: children younger than age 6 must be accompanied by an adult.   Registration required by March 11.   708.747.6320.

This is a fun family workshop to create a natural style birdhouse from a gourd to be a welcoming nesting space for birds in your own backyard. Birdhouses are increasingly important to cavity nesters like wrens and chickadees. This is a Partnership for Programming event sponsored by the Thorn Creek Audubon Society. All materials will be provided. This program will take place indoors in an accessible facility.