We started putting out suet cakes a few weeks ago. I have to take them in a night or the raccoons claim them.
I've been pleasantly surprised by the variety. Several species of sparrows, juncos, wrens, cardinals, blue jays, 2 kinds of woodpeckers, finches (though they seem to have disappeared) and dozens of chickadees.
Chickadees will eat out of your hand. It takes a while, but worth the time.