The Naturalist’s Library by Sir William Jardine (1836), a majestic male peafowl portrait. Digitally enhanced from our… Free Image from public domain license 
Indian peafowl (Pavo Cristatus) illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own… Free Image from public domain license 
Three horse heads (1812) by Jean Bernard (1775-1883). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Majestically colored portrait of a peacock. Digitally enhanced from our own original plate. Free Image from public domain license