Nyjer Thistle Sock for Small Birds - 4x11 Inch Finch Feeder - Perfect for Backyards, Gardens & Wild Bird Feeding Stations

This nyjer thistle sock provide an economical method for feeding small, desirable birds that cling, such as goldfinches and house finches. These socks are woven from heavy material. The birds have to work to obtain the seed, draw string retainer. This product comes in small size. Measures 4-inch by 11-inch.