Plain-coloured Acanthiza (Acanthiza inornata) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321469/free-illustration-image-gould-illustrations-birdFree Image from public domain licenseWestern Acanthiza (Acanthiza apicalis) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321471/free-illustration-image-gould-australia-birdFree Image from public domain license