Willow Grouse, or Large Ptarmigan from Birds of America (1827) by John James Audubon, etched by William Home Lizars.… https://www.rawpixel.com/image/277382/free-illustration-image-audubon-bird-birds-america-public-domainFree Image from public domain licenseWillow ptarmigan male (Lagopus lagopus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326013/free-illustration-image-von-wright-brothers-century-birdFree Image from public domain licenseWillow ptarmigan illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of Svenska… https://www.rawpixel.com/image/326014/free-illustration-image-von-wright-brothers-ptarmigan-wrightFree Image from public domain licenseGrouse vintage bird png sticker hand drawn https://www.rawpixel.com/image/2634592/free-illustration-png-bird-pheasant-birdsView licenseWillow ptarmigan (Lagopus lagopus ) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/325973/free-illustration-image-von-wright-brothers-wright-birdFree Image from public domain licensePng sticker willow ptarmigan bird hand drawn https://www.rawpixel.com/image/2634594/free-illustration-png-dove-birdView licenseWillow ptarmigan female (Lagopus lagoups) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/325958/free-illustration-image-von-wright-brothers-animals-1900sFree Image from public domain licenseHybrid between Western capercaillie and Willow ptarmigan (Tetrao urogallus x lagopus lagopus) illustrated by the von Wright… https://www.rawpixel.com/image/326016/free-illustration-image-von-wright-brothers-tetrao-urogallus-birdFree Image from public domain licensePng sticker grouse bird hand drawn https://www.rawpixel.com/image/2627875/free-illustration-png-animal-png-ptarmigan-birdView licenseHybrid between Black grouse and Willow ptarmigan (Yrurus tetrix x lagopus lagopus) illustrated by the von Wright brothers.… https://www.rawpixel.com/image/325969/free-illustration-image-von-wright-brothers-grouse-vintageFree Image from public domain licensePng sticker western capercaillie, willow ptarmigan hybrid bird hand drawn https://www.rawpixel.com/image/2627849/free-illustration-png-vintage-willow-printable-graphic-bird-animalView licenseVector willow ptarmigan bird hand drawn https://www.rawpixel.com/image/2692221/premium-illustration-vector-animal-artwork-avesView licensePng sticker grouse bird hand drawn https://www.rawpixel.com/image/2627888/free-illustration-png-vintage-birds-animal-pngView licensePng sticker willow ptarmigan/black grouse bird hand drawn https://www.rawpixel.com/image/2627827/free-illustration-png-vintage-birds-pheasant-animal-pngView licensePng sticker willow ptarmigan/black grouse bird hand drawn https://www.rawpixel.com/image/2627833/free-illustration-png-vintage-birds-animal-pngView licenseGrouse png vintage drawing collection https://www.rawpixel.com/image/2640068/free-illustration-png-animal-png-animals-vintage-grouseView licenseVintage mixed birds png sticker drawing collection https://www.rawpixel.com/image/2696137/free-illustration-png-scandinavian-animal-png-abstractView licenseGrouse psd vintage drawing set https://www.rawpixel.com/image/2696180/premium-illustration-psd-garrulus-glandarius-abstract-animalView licenseVector grouse bird hand drawn https://www.rawpixel.com/image/2692208/premium-illustration-vector-animal-artwork-avesView licenseVector grouse bird hand drawn https://www.rawpixel.com/image/2692206/premium-illustration-vector-animal-artwork-avesView licenseVector western capercaillie/willow ptarmigan hybrid bird hand drawn https://www.rawpixel.com/image/2690749/premium-illustration-vector-animal-artwork-avesView licenseWillow ptarmigan female (Lagopus lagoups) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326331/premium-illustration-psd-america-ancient-animalView licenseWillow ptarmigan (Lagopus lagopus): male and female with chicks. Reproduction of a painting by J. J. Audubon, ca. 1827. https://www.rawpixel.com/image/14005914/image-cat-cartoon-artFree Image from public domain licenseVector black grouse/willow ptarmigan hybrid bird hand drawn https://www.rawpixel.com/image/2689919/premium-illustration-vector-animal-artwork-avesView licenseVector mixed grouse hand drawn set https://www.rawpixel.com/image/2696128/premium-illustration-vector-dove-animal-artworkView licenseVintage mixed hand drawn bird collection https://www.rawpixel.com/image/2696217/premium-illustration-image-white-dove-animal-artworkView licenseVintage mixed grouse hand drawn bird collection https://www.rawpixel.com/image/2696511/premium-illustration-image-animal-artwork-avesView licenseVector grouse bird hand drawn https://www.rawpixel.com/image/2692217/premium-illustration-vector-animal-artwork-avesView licenseVintage grouse birds psd hand drawn set https://www.rawpixel.com/image/2640090/premium-illustration-psd-dove-white-vintageView licenseVector western capercaillie/willow ptarmigan hybrid bird hand drawn https://www.rawpixel.com/image/2692318/premium-illustration-vector-animal-artwork-avesView licenseVector mixed doves hand drawn set https://www.rawpixel.com/image/2686560/premium-illustration-vector-vintage-dove-rock-paintView licenseHybrid between Black grouse and Willow ptarmigan (Yrurus tetrix x lagopus lagopus) illustrated by the von Wright brothers.… https://www.rawpixel.com/image/326328/premium-illustration-psd-america-ancient-animalView licenseWillow ptarmigan (Lagopus lagopus ) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326247/premium-illustration-psd-america-ancient-animalView licenseWillow ptarmigan illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of Svenska… https://www.rawpixel.com/image/326214/premium-illustration-psd-america-ancient-animalView licenseWillow ptarmigan male (Lagopus lagopus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326272/premium-illustration-psd-america-ancient-animalView licenseHybrid between Western capercaillie and Willow ptarmigan ♂ (Tetrao urogallus x lagopus lagopus) illustrated by the von… https://www.rawpixel.com/image/326212/premium-illustration-psd-america-ancient-animalView license