Join Mitchell Lake Audubon Center staff and other members of the community to help clean up their habitat! Mitchell Lake Audubon Center depends on their amazing volunteers to help manage their habitat. This can involve trail maintenance, removal of invasive species, and planting native plants for birds and butterflies depending on the tasks of the day. All training provided. All children 18 and under must be accompanied by an adult and must be at least 12 years of age.