I work at a location in downtown Peoria, IL. A mallard hen is currently incubating eggs in a nest in the courtyard of my workplace. Once the ducklings hatch, in order to make it to the River (nearest water) they will have to undergo (1) a four-foot drop from their nest location onto concrete, (2) a 3+ block walk through intersections with heavy traffic, (3) several impassible obstacles preventing them from getting to the water. Do you have any suggestions for things I can do to help them get to water successfully with their mother?