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By Janet Cunningham | July 19, 2026 Saltmarsh Sparrow, Public Domain Tucked along the scenic shoreline of Guilford and Madison, Connecticut, the East River Marsh (ERM) complex spans over 800 acres of tidal wetlands. It stands as the largest high-marsh dominated coastal ecosystem on Long Island Sound. Because of this unique geography, it plays host to one of the most critical breeding populations of a tiny, enigmatic bird: the Saltmarsh Sparrow. However, this little songbird i