Common Grackles and European Starlings can be a nuisance on suet feeders, especially in late winter and spring. Since I’ve switched to using upside-down suet feeders, they usually don’t cause too much of a problem. But sometimes grackles can still get a little crazy. They can’t hang from feeders for long, but if there is a little flock of them, they can take turns. Lots of little bits of time dangling on a feeder can add up and they are aggressive toward other birds. But I have a trick to keep nuisance birds off suet on poles!
If you hang a bird feeder from a tree, you want the best hanging squirrel baffle you can get. To keep squirrels from eating most of the food you put out for birds, you need a truly squirrel-proof feeder or a really good squirrel baffle or better yet, both. Don’t just buy whatever you see labeled “baffle” and expect it to work. Here is what to look for in a good squirrel baffle.