Another type of seed that squirrels don’t particularly care for is thistle (nyger) seed. Thistle seed usually attracts chickadees and gold finches. (Make sure you use a thistle feeder. A bird feeder especially for thistle seed usually has smaller openings so that the small thistle seed doesn’t fall out. You can also make your own by putting the thistle seed inside a nylon stocking and hanging it up).
Selectively using only certain types of seed is an inexpensive way to keep squirrels from invading your bird feeders.
While the above seed doesn’t appeal to squirrels, it also doesn’t appeal to a large majority of birds so the variety of birds at your feeder will decrease as well. Fortunately, safflower seeds do appeal to cardinals, doves, titmice, nuthatches, and house finches.
