The bird has to decide if it will try to fly, but it was not sure if it wants to. The bird thought, "If I never forever endeavor" then I won't ever learn. On one wing, he worries he might fail and on the other wing he thinks of how he may succeed. He worries that if he tries, he may get lost in the world. That makes him want to stay in his nest where he's safe.
I think this book would help other children to learn that trying new things can be scary, but sometimes when we try, we can find things that make us happy too. And this book will help others know that mistakes are okay and part of learning.
My favorite part is that the bird tried and learned that she could fly. I also liked that I read this book because it gave me a chance to talk to mom about making mistakes and how I don't like making them. Then I learned they are good and part of learning.