Petrocossyphus cyanus; Blue Rockthrush (1804–1902) print in high resolution by John Gould and Henry Constantine… https://www.rawpixel.com/image/3151164/free-illustration-image-animal-antique-artFree Image from public domain licenseDifferent types of birds illustrated by Charles Dessalines D' Orbigny (1806-1876) Digitally enhanced from our own 1892… https://www.rawpixel.com/image/324131/free-illustration-image-bird-thrush-orbignyFree Image from public domain license