This bird feeder definitely has a good design for keeping the squirrels from raiding it. It holds slot of seed. The birds had a hard time getting the sun flower seeds out of the feeder openings because there is a plastic piece covering them. It’s got a star shape cutout for the birds to reach their beaks through, but they looked frustrated trying. The birds worked it out on their own by pulling the plastic out. Now they eat from it just fine).