This stream takes you to the Arnold Arboretum of Harvard University, a 281-acre “tree museum” located in the Jamaica Plain and Roslindale neighborhoods of Boston. Founded in 1872 as the oldest public arboretum in North America, it emerged through a partnership between Harvard University and the city, combining the farmland bequest of merchant Benjamin Bussey with a financial trust from whaling merchant James Arnold. Designed in collaboration with renowned landscape architect Frederick Law Olmsted, the Arboretum forms a vital part of Boston’s “Emerald Necklace” park system. It serves as a globally recognized research institution for temperate woody plants while remaining free and open to the public year-round. During the peak migration and nesting months of April and May, the Arboretum comes alive with birdsong: Eastern Bluebirds and Tree Swallows nest in boxes across the landscape, Baltimore Orioles arrive and sing in May, and resident species such as Black-capped Chickadees, Northern Cardinals, Tufted Titmice, and White-breasted Nuthatches remain active in the canopy. American Robins and Gray Catbirds nest widely, Wood Ducks inhabit the water areas, and Red-bellied Woodpeckers are often heard near Bussey Hill, while spring warblers—including Yellow-rumped, Pine, and Yellow Warblers—pass through. Altogether, the Arnold Arboretum is not only a botanical treasure but also a vital urban habitat for both resident wildlife and migratory visitors.