Oscar the Osprey and His Diminutive Sister

In the author's third book about Oscar the Osprey, he tells the story about he and his sister, Oprah. The story is about Oscar becoming aware of the problems faced by his undersized sister, Oprah, which has caused her to be withdrawn and shy. Her peers call her Opie, a nickname that she feels is insulting, and she becomes distanced from the other Ospreys while facing alone dangers from wild animal...