@GlennS We have the Eastern Gray Squirrel here in #southeasternPA.

Well, that's the one who shows up at the bird feeders.

I highly recommend the Squirrel Buster bird feeder. Pricey, but worth it. Bought the first one in 2020. Still have it, still keeps the squirrels out.

Squirrel Buster Classic Squirrel-proof Bird Feeder w/4 Feeding Ports, 2.4-pound Seed Capacity https://a.co/d/8taJqXz