When a crocodile egg rolls down the hill and into the nest with the rest of her eggs, Mother Duck pays no mind and raises the little crocodile as if he were a duck. Interest Level: K-3 Reading Level: 3.2 ATOS Book Level: 3 AR Interest Level: LG AR Points: .5 AR Quiz: 79195EN Reading Counts Level: 3.5 Reading Counts Points: 1 Lexile Measure: 650 Lexile Code: AD (Adult Directed)Fountas & Pinnell: K.