Somewhere in a town in holy Russia, there lived a rich merchant with his wife. He had an only son, a dear, bright, and brave boy called Ivan. One lovely day Ivan sat at the dinner table with his parents. Near the window in the same room hung a cage, and a nightingale, a sweet-voiced, gray bird, was imprisoned within. The sweet nightingale began to sing its wonderful song with trills and high silvery tones. The merchant listened and listened to the song and said:

"How I wish I could understand the meaning of the different songs of all the birds! I would give half my wealth to the man, if only there were such a man, who could make plain to me all the different songs of the different birds."