Birds at a suet feeder... What a burst of vitality on a chilly morning!
What's the attraction? A cake of suet, suspended from a branch in a small wire feeder.
Suet is beef fat, a high-energy food critical for birds' survival in the colder months.
Suet is an especially strong magnet for birds (including this Northern Flicker) that eat lots of bugs in the warmer months. You can learn about suet feeders -- and what kinds of birds they'll attract -- at Birds.Cornell.Edu.