One day we noticed a common gray squirrel perched on top of the railing behind the Visitor's Center.
It was holding a dead bird and eating the breast meat. We dubbed him the "Carnivorous Squirrel."
The bird, a downy woodpecker, probably flew into a large picture window of the Atrium room and was found by this squirrel.
The squirrel carried the bird up onto the railing and had a feast.
And you thought squirrels only climbed on bird feeders to eat the seed!