Perhaps he was influenced by some new friends he met who had a different lifestyle or view of the world. They might have convinced him that running away from home was an exciting adventure and a way to break free from the restrictions at home.
One common theme is loyalty. Fans in these fanfics often show extreme loyalty to their home team, even during tough away games. Another theme is the difference in the environment between home and away games. This can include the stadium facilities, the crowd behavior, etc.
The 'Fly Away Home' short story might be about a journey or a longing for home. It could involve a character who is trying to find their way back to a place they consider home, perhaps facing various obstacles along the way.
In a way, it has elements of truth. It's fictionalized but might draw from some real-life situations related to bird conservation and human-bird interactions.
Yes, 'Fly Away Home' is inspired by real events. It takes elements from real-life stories of people's experiences with birds and their efforts to help them.