We had a problem with raccoons and other small mammals raiding our feeder. We talked with the lady at the bird seed store, and she recommended safflower seeds. The mammals think it’s bitter. It took a couple of weeks before the birds discovered the feeder, but once they did, we’ve not had any problem. I also put a zip tie on the feeder to attach it. So far so good, going on 5 months.
Safflower seeds? That’s interesting. Thanks!