With the summer nesting season behind us, it’s the time when bird researchers turn their collective gaze upon bird migration, and the many mysteries it holds. Right here on Cape Cod, scientists are studying bird migration using a variety of methods, from the high tech and cutting edge to good, old-fashioned, 19 th century trapping and monitoring methods – and sometimes both at the same time. On Monday, Brad Winn and his team from the conservation organization known as Manomet were once again