Today my wife had a young man that comes over from time to time to help her around our mini farm and he plugs in his ipad and plays music. Well today he layed it in where our two week old chicks are in two cages. I happen to walk in and here all (15 in each cage) of them are laying in a circle with their tails touching and all were listing to the music and falling off to sleep. Haven't seen that before. Must have really liked the music I would say.