https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/277443Edit ImageSaveSaveEditCropCustom TextRock Grous from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University of Pittsburg. Digitally enhanced by rawpixel.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 1200 x 922 px | 300 dpiLarge JPEG 2985 x 2293 px | 300 dpiTIFF 2985 x 2293 px | 300 dpi | 19.62 MBFree DownloadRock Grous from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University of Pittsburg. Digitally enhanced by rawpixel.More