Pennington Mealworms Wild Bird Food are an excellent, high-protein food source for many wild birds. They are a high-energy treat that will attract bluebirds, wrens, robins, chickadees, woodpeckers, cardinals and more that are difficult to attract with traditional seed blends. Mealworms can be used alone in a feeder or mixed with your favorite wild bird seed! Pennington Mealworms are oven dried for the best quality and are also preservative and additive-free, ensuring a nutritious and healthy high-energy feed.,Pennington Mealworms Wild Bird Food are an excellent, high-protein food source for many wild birds