I see a lot of nuthatch birds in my backyard feeder. Live in Oregon and we have a vast variety of birds. I feed them in the winter, but not in the summer, as they need to feed on the insects, which is beneficial to us.
I have several nuthatch woodpeckers visit my feeder every now and then. They especially love the suet. Mostly though I attract the finches, which are so cute and keep me broke buying bird seed. Hah.