Straight seeds desired by specific beautiful wild birds! Nyjer, also known as thistle seed is a favourite with finches & small songbirds. Best of all: Nyjer seed is not desired by nuisance birds or squirrels and chipmunks! Best used with a small port finch feeder. Straight seeds desired by specific beautiful wild birds! Nyjer seed is a favourite with finches & small songbirds. Best of all: Nyjer seed is not desired by nuisance birds or squirrels and chipmunks! Armstrong Nyjer is 100% genuine Nyjer seed. Attracts: American Goldfinches, House Finches, Purple Finches, Black-capped Chickadees, Dark-eyed Juncos, Common Redpolls, Mourning Doves