Jolly Chicken (1973)

The joy of life overwhelms the newly hatched chicken. He is surprised and optimistic about the world around him, singing the song "Ko-ko-kyo is all beautiful, ko-ko-kyo is all green. - koko, koko, kokó-koroko-ko!". The chick walks through the forest, but is eaten by the Sly Fox. However, in the belly of the Fox, he continues to sing, causing the same singing by the Fox.