Many owners of birds interested in the question as to why a parrot dancing, likes to listen to music, reacting to certain songs. Involuntarily the question arises, what sounds prefer these Pets and why.
But it should also be noted that not all birds have the ability to dance. It is unknown how it is that some birds make sounds, move rhythmically, and others. But it was possible to notice that the birds who lived with people for a very long time, often prone to dancing.
There is even a version that rhythmic oscillations animals have adapted, looking at people and getting them enthusiastic emotions.