There are hawks over the Marshfield marsh most of the year, riding the thermals off the high ground and reading the grass better than anyone. Hawk Landscape LLC takes a similarly long view of a property: mowing, edging and trimming through the green months, cleanups when the maples let go, plowing when the year turns hard. Winter arrives here off the water wet and heavy, and clearing it early beats fighting it later. The crew is out on driveways and walkways while the streetlights are still doing the work of the sun. Come April the mowers come back and the whole circuit starts over.