In the Grimm tale "Jorinda and Joringel", Jorinda is turned into one of these birds known for singing in the evening
Most of these correspond to single tales in the translation, but he combined 'Das 
... to the second line of the famous song of the bird  the song that Gretchen sings 
in... [DOC] [TLE] Full text of "The fairy tales of the Brothers Grimm" - Internet Archive [PAR] HANS IN LUCK JORINDA AND JORINGEL .