Dog Food, Delivery, Horse Feed, Chicken Feed, Bird Seed, Pet Supplies - Bel Air, Black Horse, Red Li, The Mill of Bel Air sells dog food and pet supplies, horse and livestock feed, farm, home and garden supplies like grass seed, fertilizer, flowers and mulch, heat pellets, wildlife and wild bird products. We offer local delivery and curbside pickup from any of our 6 Maryland locations and 1 Pennsylvania location.