From banding records we have learned that our migrant birds that winter with us do return to the same territory they found hospitable last winter. We will all be looking for Purple Finches. Don't confuse House Finches, that are here all year, with Purple's. Also, the male Purple Finch is described as a sparrow dipped in raspberry juice. Purple's figure is a bit chunky by comparison.
Fruits have been stripped, seeds about gone, insects are in hibernation or worse yet, dead.
Birds, ever opportunists, begin to look for a steady source of daily fare. And you can provide this. You can supplement in your own creative way. Water must never be overlooked. It is as necessary in winter as other months of the year.