On behalf of Audubon New York, MNLA created a landscape master plan for the Theodore Roosevelt Sanctuary in Oyster Bay Cove, the first Audubon Songbird Sanctuary in the nation. The master plan calarifies circulation routes, re-envisions existing structures, establishes native plant demonstration gardens, and creates a welcoming entry to the site. The plan also provides strategies for improving bird habitat, controlling invasive species, and managing stormwater with green infrastructure. The central gathering area features a restored bronze fountain by the American artist Bessie Potter Vonnoh (cast in 1925). The project has been implemented and phases and is now open to the public.
Twelve acres of the sanctuary were donated by W. Emlen and Christine Roosevelt in memory of their cousin, the late Theodore Roosevelt, 26th president of the United States.