Don't know if you feed birds, but about 15 yrs ago, we had a great winter irruption of Redpolls in E ID. And, I found they liked one food source. Thistle seed & they liked it in both the thistle seed feeders & scattered on the ground. We would have as many as 50+ at a time.
Right now, only getting Am Goldfinches at the thistle seed, but hoping for Redpolls!