Offer nesting materials to your birds with the Cottontail Nest Building Ball.
You provide your local wild birds with food and water, help them build nests to raise their young by giving them a supply of nesting material. Birds will extract bits of 100% cotton and yarn pieces to weave into their nests. Attached hanger, included. The white cotton will help you locate your backyard bird nests and keep the wild birds you love coming back to your yard every year. For best results, hang near your bird feeders or bird houses.