Nyjer seed is a type of thistle seed that finches love. Nyjer works best in a tube or silo styled feeder and is often enjoyed by American Goldfinch, Pine Siskins and Purple Finches (just to name a few).
Did you know?
American Goldfinch favour Nyjer seed when nesting because they feed their offspring "thistle milk".
Nyjer seed has a very fine shell and is not recommended if you are trying to avoid shell mess.