Are grackles and starlings using the baffle to get to your pole-mounted upside-down suet feeders? I have two tricks to keep these nuisance birds from using the baffle as a staging spot to get to suet hung on poles!
Sometimes a feeder works great right out of the box. But sometimes you need to make adjustments. I use Erva’s Starling Proof Mealworm Feeder to offer dried mealworms to Eastern Bluebirds and Carolina Wrens. I like this bluebird feeder very much, but I think it is designed for live mealworms rather than dried. You might not think that would make a difference but it does. I needed to make a change to use Erva’s mealworm feeder with dried mealworms. (Don’t worry, it’s easy.)
Note: This type of feeder is sometimes alternatively called a “Erva Barrier Guarded Feeder.”
Where should you put your bird feeders? To attract the widest variety of birds, spread out your bird feeders if you can. Too many feeders right on top of each other, each appealing to different types of birds, creates congestion. This increases conflict as species and personal spaces overlap.