Wild horse. Horse Squabble (Winter 2015) .Original public domain image from Flickr https://www.rawpixel.com/image/4033093/photo-image-nature-landscape-brownFree Image from public domain licenseAssateague Island National Seashore, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298143/free-photo-image-horse-animal-cc0Free Image from public domain license