I am not sure where you live, Sue. But, as a birder in NE Ohio, I watch this website in the fall as do a lot of other birders:
This predicts the amount of food seed-eaters will have in Canada, which can give some indication of what northern birds will come to Ohio.
Now, it isn't an exact thing as this current fall/winter is showing. The forecast was that there was plenty of food up north. But, we are already having a number of reports of pine siskins and crossbills. Crossbills are usually very uncommon in NE Ohio. But, there are at least two flocks being reported right now. One is west of Toledo in Oak Openings, and the other is near a reservoir just south of Mansfield.
We are also experiencing a number of snowy owls all along the Lake Erie shoreline and in some inland sites like airports and farmlands. It is thought that a number of these owls are youngsters who have a tough time up north compared to the adult/more experienced owls. But, there are some adults around right now.
I will add something else that I learned from a number of organizations that do bird banding. It is difficult to determine if birds like blue jays and chickadees are visitors from Canada to Ohio seeking food (irruptions) or they are just local birds that are wandering since we have those species year-round. There is really no way to tell unless the birds have been banded and are recaptured. (Banding is a low-return activity. Only a fraction of banded birds are ever recovered. But, it is one of the only way to try to track bird movements. GPS/satellite trackers are coming down in size and cost. They may be the future of tracking the smaller songbirds. They are used in some larger birds now like hawks and cranes.) Birds like the siskens, crossbills and others like evening grosbeaks are easy to label as they don't normally live here in Ohio. So, it's a pretty good bet that they are from the north when we see them.