Niger seed requires a specifically designed feeder. Niger is a tiny seed and although it will attract Goldfinches and Siskins it requires the feeder to have small slits instead of the normal port holes associated with other feeders. The size of the slit allows birds to get their beak in and extract the fine seed whilst also minimising the amount of food that is lost.
The Ring Pull PRO Niger Seed feeder in a premium feeder developed by Jacobi Jayne and is designed specifically to use with niger. This feeder features an easy to fill, lift-off lid to keep the contents dry and coated metal perches, allowing birds to feed in comfort.