Great Kills Harbor rings with halyards on a windy afternoon, and the yards behind it grow under old oaks that drop something in nearly every month of the year. Blue Jay Landscaping and Cleaning Inc. handles the lawn care and the tidying that goes with it — mowing, edging, trimming, hedge work, mulch, yard and property cleanups, with the debris hauled off rather than piled at the curb. A cleanup done properly resets a place: the beds show their shape again and the grass finally gets some air. The route runs Great Kills and the streets climbing toward Amboy Road. Boats down here get scrubbed every season; a yard deserves the same.