Suitable for: small to extra large parrots, see sizing information below Chewing is a natural instinct for birds, particularly during the breeding season when birds in the wild will create nests by burrowing into tree trunks. Providing your bird with safe, destructible items to chew on helps to fight boredom and keep them mentally and physically stimulated. Your parrot will love chewing and shredding this soft, 100% biodegradable and non toxic yucca cactus.