Uguisu is the name of the bird and Fue is whistle .
It is the bird that heralds the arrival of spring and is the most famous song in Japan.
It is a whistle that can imitate the sound of birdsong.
I'm not sure if I'm making it right, because I can't even play a ready-made Uguisu whistle well.
Let me know if you play it well.
*I tried to blow the printed UguisuFue.
*Adout Uguisu
https://en.wikipedia.org/wiki/Japanese_bush_warbler
*How to sing
https://kyoushien.kyokyo-u.ac.jp/taka/1160.html
The author marked this model as their own original creation.