The Suffolk Downs T Station located on the MBTA Blue Line is right next to Belle Isle Marsh, Department of Conservation and Recreation property that hosts a variety of bird species including tree sparrows, red tail hawks, woodpeckers, chickadees, and Canada geese.
You can also hop on the Orange Line and visit the Arnold Arboretum in Jamaica Plain, the Green Line for the Boston Public Garden, and the Red Line for the Mt. Auburn Cemetery and Fresh Pond.
Even if most of your day is spent walking between buildings, nature is never far away. Check out more Massachusetts Outdoor Events on The Great Outdoors interactive Google Calendar.