https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/277382Edit ImageSaveSaveEditCropCustom TextWillow Grouse, or Large Ptarmigan 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 815 px | 300 dpiLarge JPEG 3500 x 2376 px | 300 dpiTIFF 3500 x 2376 px | 300 dpi | 23.82 MBFree DownloadWillow Grouse, or Large Ptarmigan from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University of Pittsburg. Digitally enhanced by rawpixel.More