Real estate agents in Stamford cleaned up a nature preserve today as part of their company's initiative to give back.

Members of Keller Williams Realty partnered with the Stamford Land Conservation Trust to protect a 150-acre preserve in the city.

Team members helped to remove invasive species plants that are known to spread ticks and cause scratches to hikers.

The cleanup effort is part of the company's annual Red Day, a day to renew, energize and donate.