If you take a ride out to Montauk via the parkway, you will pass through Hither Woods. As you motor along, keep your eyes on the rusting guardrails. Just behind them you will find a very healthy four-foot-high hedge of big bluestem grass, one of the original staples of old Montauk’s bountiful prairie. At one time it stretched from the western end of the Napeague isthmus to the point, a few trees here and there, but mostly grasses and wildflowers.