My "little boys,"(in their forties now!)loved a bedtime story I told them- my own childhood memory about a flock of bluebirds, and the rhyme my mother told me then. Over the weeks, the story grew into a song, with & for my boys. It is recorded on my CD, "Childhood Songs."
Also, John McCutcheon and others have recorded it, and all children love the story. (No advertising is meant).