"Foundling-Bird is a German fairy tale collected by the Brothers Grimm, number 51.
It is Aarne–Thompson type 313A, the girl helps the hero flee, and revolves about a transformation chase. Others of the type include
The Master Maid, The Water Nixie, Nix Nought Nothing, and The Two Kings´ Children." - (en.wikipedia.org 11.12.2019)
en
