When a newly hatched mallard duckling crossed Clevelandtown Road Sunday, it was embarking on an odyssey. The trip would take it down a storm drain and then to a new home among chickens. It would involve police, the highway department and the kindness of strangers. It would give the duckling (gender yet unknown) a name: Stormy. Stormy, less than a week old, was observed Sunday crossing Clevelandtown Road when he walked across a storm grate and fell through to the bottom. “He was seen swimming in circles down at the bottom,” Edgartown police Sgt. Craig Edwards said.