Mistle thrush, Turdus viscivorus 1, fieldfare, T. pilaris 2, redwing, T. Iliacus 3, song thrush, T. philomelos 4, blackbirds, T. merula 5,6, and ring ouzel, T. torquatus 7. Handcoloured copperplate engraving from Bertuch's "Bilderbuch fur Kinder" (Pi