Feed your backyard flock. Purina® Flock Raiser® Pellets provides complete and balanced nutrition for healthy flocks. Sustain an entire mixed flock of poultry, including growing hens, roosters, ducks, and geese. Purina® Flock Raiser® Pellets is also for pheasants, quail and turkeys after 8 weeks of age and older – all with the same bag of nutrient-rich, pelleted feed.