Purina® Flock Block® Supplement is a delightful treat designed specifically for laying hens and mixed poultry flocks. Crafted from whole grains, this supplement delivers essential nutrients and enrichment throughout the year. During the summer months, it promotes natural pecking behavior, while in colder weather, it serves as an effective boredom buster by providing birds with an engaging outlet to peck other than each other. This product is conveniently available in a 25lb block, making it easy to provide consistent care for your flock. Model Number: