Myths and Legends of the Great Plains — The Thunder Bird - Assiniboin
_Assiniboin_ The Sioux, or Dakotas, of whom the Assiniboins are a branch, pretend that thunder is an enormous bird, and that the muffled sound of the distant thunder is caused by a countless number of young birds!
The great bird, they say, gives the first sound, and the young ones repeat it; this is the cause of the reverberations.
The Sioux declare that the young Thunders do all the mischief, like boys who will not listen to good advice; but the old Thunder, or big bird, is wise and excellent; he never kills or injures any one!
SONG TO THE THUNDER GODS[A]