This is the third Nature's Secrets learning story. It takes place in the fall. Widdle Waddle Turtle is the first book of the series. It takes place in the spring. The Big Duck, the second book, takes place in the summer. Three grandchildren, Isabelle, Elliott, and Ellie, pretend that they are nature detectives solving science principles and facts about hummingbirds in a lake community. A new learning concept is being developed using a question in bold capital letters followed by the word, clue. This gives a signal to turn to the last page of the story for supplementary material. The word, clue, refers to what the nature detectives are trying to solve. An interactive relationship with the reader occurs when a question is inserted in RED print. The science questions involve erosion, instinct, migration, and food for hummingbirds. There is also a solvable secret-code message on the kitchen chalkboard. A secondary mystery entails what the yummy smell is coming from the kitchen. Using our oldest grandchild's artwork makes MS. FLITTER-FLITTER unique. The painted hummingbirds on the front cover and the three sketches on the back cover have been created by Brenda Radford. She has completely illustrated my first three inspirational books.