Hay bales are large bundles of dried grass or legumes, typically used as animal feed or for bedding. They are created by cutting, drying, and compressing the plants into compact shapes, which can be easily transported and stored. Hay bales come in various sizes, with round and square shapes being the most common. Farmers often use hay bales to provide nutrition for livestock, such as cows, sheep, and horses. In addition to animal feed, hay bales can also be used for erosion control, landscaping, and even as building materials in some eco-friendly construction projects.