The idea of canaries being caged.
First of all, I want to go out, I want to go home, I want my mother, I want my relatives. You just want to appreciate me playing with me. Have you ever thought how sad it is to have no maternal love? You also have parents, brothers and sisters. What would you think if you couldn't see them? Don't be so selfish. Think of our birds. Thank you. Please let me out.
Now my home is not as fresh and quiet as before, and the sky is not as blue as before. But I really want to go back at once, where I have endless happiness and freedom. I can't stay here one more day. I just want to go out, but I don't have that magic. Please let me out.
We are under a blue sky, and we should live in harmony. Let me out. I can work for you. I will tell people far away that we can't chop down trees, build tall buildings everywhere, change rivers at will, and return our clear streams, dense forests, fresh air and blue sky.