Yellow-throated Friar Bird (Tropidorhynchus citreogularis) illustrated by Elizabeth Gould (1804–1841) for John… https://www.rawpixel.com/image/321399/free-illustration-image-century-gould-illustrations-australian-animalFree Image from public domain licenseHelmeted Honey-eater (Tropidorhynchus Buceroides) illustrated by Elizabeth Gould (1804–1841) for John Gould’s… https://www.rawpixel.com/image/321498/free-illustration-image-australia-birds-public-domain-gould-illustrationsFree Image from public domain licenseSilvery-crowned Friar Bird (Tropidorhynchus argenticeps) illustrated by Elizabeth Gould (1804–1841) for John… https://www.rawpixel.com/image/321446/free-illustration-image-gould-bird-1800sFree Image from public domain licenseFriar Bird (Tropidorhynchus corniculatus) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321404/free-illustration-image-birds-gould-centuryFree Image from public domain license