Kemphaan (Philomachus pugnax) (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13743511/image-paper-butterfly-frameFree Image from public domain licenseKemphaan (Philomachus pugnax) (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13743280/image-paper-art-watercolorFree Image from public domain licenseA ruff and a reeve (male and female wading bird) (Philomachus pugnax) on the shore of a river. Etching by W. S. Howitt. https://www.rawpixel.com/image/13970924/image-cartoon-art-skyFree Image from public domain licenseRuff female (Philomachus pugnax) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version… https://www.rawpixel.com/image/326309/free-illustration-image-the-von-wright-brothers-century-wrightFree Image from public domain licenseRuff (Philomachus pugnax), female, illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326058/premium-illustration-psd-america-ancient-animalView license