Describes the behavior of different kinds of ducks and, in particular, discusses how all ducks use preening to keep their feathers dry. Interest Level: K-3 Reading Level: 3.4 ATOS Book Level: 3.7 AR Interest Level: LG AR Points: .5 AR Quiz: 13807EN Reading Counts Level: 2.9 Reading Counts Points: 2 Lexile Measure: 660 Lexile Code: AD (Adult Directed) Recommended for use in science lessons by NSTA.