Standlee Hay Western Alfalfa Hay for Small Animals is an ultra-premium brand of alfalfa. Alfalfa hay is ideal for younger pets, including bunnies, guinea pigs, chinchillas, and other small herbivores. It is higher in calcium than timothy or other grass hays, which is ideal for growing bodies. This is the perfect hay for animals who are six months of age or younger. Alfalfa hay is also ideal for pregnant pets, nursing pets, or those who are trying to gain weight. It should make up approximately 20% of your pet’s diet.