A male house finch clings to a branch in Pittman Wash, the last remaining desert riparian ecosystem in the Green Valley area, on Saturday. Project Green coordinators aim to involve the community in helping to preserve and maintain the ecosystem of the wash, which is home to many forms of desert plants and animals.

Stephen R. Sylvanie / Special to the Home News

A male house finch clings to a branch in Pittman Wash, the last remaining desert riparian ecosystem in the Green Valley area, on Saturday. Project Green coordinators aim to involve the community in helping to preserve and maintain the ecosystem of the wash, which is home to many forms of desert plants and animals.