Great Grey Petrel (Procellaria hasitata) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/378090/free-illustration-image-sea-elizabeth-gould-vintageFree Image from public domain licenseSilvery Grey Petrel (Procellaria Glacialoides) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321587/free-illustration-image-sea-birds-australiaFree Image from public domain licenseSoft-plumaged Petrel (Procellaria mollis) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321528/free-illustration-image-australia-gould-illustrations-birdFree Image from public domain licenseGiant Petrel (Procellaria gigantea) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321605/free-illustration-image-elizabeth-gould-sea-illustrationsFree Image from public domain licenseWhite-headed Petrel (Procellaria Lessonii) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321588/free-illustration-image-bird-petrel-seaFree Image from public domain licenseSpectacled Petrel (Procellaria conspicillata) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321606/free-illustration-image-bird-century-elizabeth-gouldFree Image from public domain licenseBlue Petrel (Procellaria coerulea) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881) Birds… https://www.rawpixel.com/image/321589/free-illustration-image-gould-illustrations-1800sFree Image from public domain licenseCook's Petrel (Procellaria Cookii) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881) Birds… https://www.rawpixel.com/image/321565/free-illustration-image-century-gould-illustrationsFree Image from public domain license