If you are a serious birder, or even a beginner, you should consider this ready to feed wild bird food that has a high energy suet base, which means no waste and no mess! Berry Flavored Nuggets are made from rendered beef suet, peanuts, corn, oats and cherry and berry flavoring. Nuggets are quite a departure from traditional bird foods, but testing has shown that birds love them, and they are easy to feed and refill. They come in a resealable plastic bag, which helps to prevent spoilage. Nuggets can be fed alone on a platform feeder or Nugget/Peanut/Sunflower feeder using 1/3" wire mesh. To adapt bluebirds to this food source start by putting a small amount of Nuggets on the feeder ledge. Once the birds discover the Nuggets, move them inside the feeder. Nuggets may also be blended with 5-10 lbs. of your favorite wild bird seed mix. This mix may then be fed from tube or hopper style feeders. Weighs 27 ounces.