Willow 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 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 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 license