Striated Sittella (Sittella striata) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321293/free-illustration-image-australia-gould-illustrationsFree Image from public domain licenseBlack-capped Sittella (Sittella pileata) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321523/free-illustration-image-elizabeth-gould-birdFree Image from public domain licenseOrange-winged Sittella (Sittella chrysoptera) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321515/free-illustration-image-gould-australia-birdFree Image from public domain licenseWhite-winged Sittella (Sittella leucoptera) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321517/free-illustration-image-century-gould-illustrations-elizabethFree Image from public domain licenseWhite-headed Sittella (Sittella leucocephala) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321516/free-illustration-image-elizabeth-gould-illustrationsFree Image from public domain license