A: Grade 4-5 (Medium-Advanced). Typically for 2nd-3rd year high school players and above. The rhythms in Movement 2 are difficult.
If you cannot afford the full conductor score, consider these alternatives: Toshio Mashima Birds Pdf
The concerto is approximately 20 minutes in duration and consists of three distinct movements, each themed after a different bird: A: Grade 4-5 (Medium-Advanced)