https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/326039Edit ImageSaveSaveEditCropCustom TextHybrid between Black grouse and Willow ptarmigan (Lyrurus tetrix ♂ x lagopus lagopus ♀) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of Svenska Fåglar Efter Naturen Och Pa Sten Ritade.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 880 x 1200 px | 300 dpiLarge JPEG 2566 x 3500 px | 300 dpiBest Quality JPEG 5498 x 7500 px | 300 dpiTIFF 5498 x 7500 px | 300 dpi | 235.98 MBFree DownloadHybrid between Black grouse and Willow ptarmigan (Lyrurus tetrix ♂ x lagopus lagopus ♀) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of Svenska Fåglar Efter Naturen Och Pa Sten Ritade.More