4-8 Guy Place is an intimate open space and site of the last natural habitat in Rincon Hill.  This parcel is home to a stately and landmark 70 year old Green Ash tree in Rincon Hill.  Along with two large Avocado trees, these trees provide a living canopy for a vulnerable population of Allen's Hummingbird and other avian wildlife.  The trees also serve as a visual respite from a monotonous urban landscape for local residents. City plans call for removal of this ecological niche, death for the hummingbirds, wildlife and subsurface ecological system -- to be replaced by a series of cold and colorless concrete and metal columns using toxic Boston Ivy dangerous to children and pets. We feel the plans of Greater Rincon Hill Community Benefit District and the Recreation and Parks Department subverts the purpose of open space in an urban setting, encroaches on fragile, ever-shrinking natural habitats and increases the local carbon footprint.  We strongly feel this small ecosystem should be incorporated into the redesign plans for Guy Place Park in Rincon Hill.