Female Downey Woodpecker cracking a piece of dried cord she got from the feeder.
Intelligent enough to use the gaps in the tree bark to hold the corn while she uses that beak to get at the soft edible insides.

Nikon D800, AF-S Nikkor 300mm F/4 D, Nikkor TC 1.4 E II, Tripod
Exposure = 1/500s f/5.6 at 420.0mm iso280, apertire priority, spot metering
White balance pre-set via white reference card
Focus Distance = 5 meters