I can't even imagine how hard it is for the outside critters! I usually only see the starlings in the spring, when they show up with their young and attack the suet feeders. I took this picture through a window, but I think you can see it is STANDING ROOM ONLY for the suet and the seed.
The Bluejays, Juncos, Thrushes, Sparrows, Flickers, Towhees and Nuthatches are all getting their fair share, too, as are the squirrels and chipmunks.
If you are fortunate enough to be visited by outside critters, keep them in mind during this cold spell. I know they will appreciate it!