Jonathan Livingston seagull was here
Obscure 1972 reference.
The story of Jonathan Livingston Seagull, a seagull who is bored with the daily squabbles over food. Seized by a passion for flight, he pushes himself, learning everything he can about flying, until finally his unwillingness to conform results in his expulsion from his flock. An outcast, he continues to learn, becoming increasingly pleased with his abilities as he leads an idyllic life, which included using horses butts for arial target practice…
