I've not heard of a pine cone feeder, hoped you had posted a photo!

I've had feeders out n the winter for years, even when I lived in my apartment I'd have them hanging from the balcony. I put out Wagner's Songbird, so I get cardinals, mourning doves, dark eyed juncos, sparrows, etc.

New issue this year: my Tasha loves to eat the seed that she finds on the ground!