In the video, a group of guinea pigs is seen in a pen with hay on the ground. The guinea pigs are of different colors, including white, black, and brown. They are seen eating from a wooden feeder that is filled with hay. The feeder is placed on a wooden platform. The guinea pigs are active and moving around the pen, some are eating while others are exploring their surroundings. The video captures the natural behavior of the guinea pigs in their habitat.