Get this suet feeder if Starlings and Grackles are dominating your feeders.  The birds that you want to attract with a suet feeder (woodpeckers, nuthatches, and chickadees) can hang upside-down no problem.  But grackles and starlings have a very difficult time doing so. We recommend using Smorgasbug Suet Cake for best results  as the extra insects inside it maximize your odds of attracting the widest variety of birds.  Try the Woodpecker Treat if you want something a little less expensive.  If you need to be squirrel proof use either the Insect & Hot Pepper Suet Cake or the Hot Pepper Suet Cakes. Lifetime Warranty. We fix it for free at our shop in Crystal Lake!