- Nuthatches wedge nuts and seeds into tree bark then “hatch” them open.
- Nuthatches have a backward-pointing toe called a hallux that enables them to walk head-first down trees.
- Nuthatches prefer to nest in the cavities of old oaks, beeches, and hickories. The species spreads crushed beetles across the entrances of its nests, presumably to discourage squirrels from entering.
- The bird also smears vegetation or fur around the entrance of the nest when leaving, to make the nest harder for predators to find via smell.