https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/277446Edit ImageSaveSaveEditCropCustom TextBlack-throated Blue Warbler 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 901 x 1200 px | 300 dpiLarge JPEG 1726 x 2300 px | 300 dpiTIFF 1726 x 2300 px | 300 dpi | 11.39 MBFree DownloadBlack-throated Blue Warbler from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University of Pittsburg. Digitally enhanced by rawpixel.More