When submitting eBird observations at South River Marsh, it is most helpful to start a new checklist for each hotspot in the marsh area. Use the general hotspot when you have a checklist that includes multiple locations or if no other hotspot or personal location is appropriate for your sightings.

South River Marsh is a salt marsh located northeast of Marshfield. It is part of the South Shore Coastal Plain Ecoregion. The marsh is also an important natural resource for the local community, as it offers recreational opportunities, flood protection, water quality improvement, and carbon sequestration. The marsh is managed by the Massachusetts Department of Conservation and Recreation and the Marshfield Conservation Commission, with the help of volunteers and partner organizations.