Drawing of a Bison, and Heads of a Bison and Horse

The image depicts a drawing of two animal heads and a full body of one. The main animal depicted is a bison, shown in profile facing left with its head lowered and curved horns. The bison's body is rendered in dark gray and black with some white, with a large hump on its back and a long tail with a tuft at the end. The bison's legs are splayed out, with the front right leg bent at the knee. The background of the image is a light brown color with darker brown spots and white flecks. In the top left corner, a horse head is drawn in profile facing right, and below and to the left of the bison's head is another bison head in profile facing left. The drawing appears to be on a piece of paper or cardboard that has been damaged, with tears, scratches, and discoloration visible throughout.