Dutch Slough Tidal Marsh Restoration

California restored former grazing land at Dutch Slough into tidal marsh; between 2020 and 2025 Marsh Wren density jumped from 0.15 to 18.47 birds per hectare, an increase of more than 12,000%

California’s efforts to restore wetlands in the Sacramento–San Joaquin Delta are showing measurable benefits for marsh-dwelling…