Five little chickadees sitting at the door, (or peeping at the door)
One flew away, and then there were four.
Four little chickadees could not agree, (or sitting in a tree)
One flew away, and then there were three.
Three little chickadees looking very blue, (or looking at you)
One flew away, and then there were two.
Two little chickadees sitting in the sun,
One flew away, and then there was one.
One little chickadee living all alone. (or pecking at my toe, she flew away and then ZERO!)
She flew away, and then there were none!