An urban wild is a remnant of a natural ecosystem found in the midst of an otherwise highly developed urban area.[1][2]
One of the most expansive efforts to protect and foster urban wilds is the aptly titled "Urban Wilds program" conducted in Boston, which had its start in 1977 off the back of a 1976 report by the Boston Planning & Development Agency (BPDA), formerly the Boston Redevelopment Authority (BRA).[3][4]