Kramsvogel (Turdus pilaris) (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13741653/image-paper-art-watercolorFree Image from public domain licenseFieldfare (Turdus pilaris) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/326059/free-illustration-image-von-wright-brothers-turdus-pilaris-wrightFree Image from public domain licenseFieldfare (Turdus pilaris) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/326141/premium-illustration-psd-america-ancient-animalView licenseRedwing (Turdus iliacus x turdus pilaris) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326142/premium-illustration-psd-america-ancient-animalView 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