I have a couple suet feeders and a black oil-sunflower seed tube feeder. Those feeders attract lots of woodpeckers: Downy, Hairy, Red-Bellied, Piliated and Flickers. Chickadees, White-Breasted Nuthatches, Goldfinches, Blue Jays, Juncos., Cardinals and Crows. The squirrels are always trying to get the suet and have succeeded with one of my feeders. I'd rather not want to feed them, but the birds do get some. We have deer wander through the yard at night, but I'm not sure if they are eating anything in my yard. I've fenced around some of my arborvitae trees to keep them away from eating them down to nubs.