Swan family flock in the lavishly green Lullwater near Prospect Park's Audubon Center at the Boathouse. Young swans start out gray feathered and are called Cygnets. The male swan is called a Cob, the female a Pen.
Those tiny, free floating, green leafed plants forming velvety blankets on the surface of our sheltered waters are called Duckweed and belong to the family Lemnaceae.
Sorry, no electric boat rides when there's lightening.