Grey-headed Blackbird (Merula poliocephala) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321494/free-illustration-image-blackbird-gould-illustrations-australiaFree Image from public domain licenseVinous-tinted Blackbird (Merula vinitincta) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321487/free-illustration-image-australia-elizabeth-gould-merulaFree Image from public domain licenseHoary-headed Grebe (Podiceps poliocephalus) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321576/free-illustration-image-elizabeth-gould-birdFree Image from public domain license