Meet Elvis, our softest ram. The birds can't resist using pieces of his fleece to build a cozy nest. Birds will enjoy pulling tufts of our sheep's wool from your decorative suet feeder to build a cozy nest. The soft wool provides a warm place for adult birds to rest and a cushion for their eggs. To use, simply refill your metal suet cage with this wool from our sheep. This Babydoll sheep wool is hand washed using an all-natural plant based cleaner. The wool is hand carded and dye free. You may notice some vegetation in the wool. This is a natural occurrence and is perfectly safe for birds to use. This is a refill for our Metal Wool Filled Suet Feeder.