The Misnamed Carpenter: A Guide to the Red-bellied Woodpecker

Despite its misleading common name, the Red-bellied Woodpecker (Melanerpes carolinus) is best recognized by its brilliant red cap and nape, zebra-striped black-and-white back, and loud, rolling “kwirr” call. The pale blush of pinkish-red on its lower belly is subtle and rarely visible unless viewed up close in bright light.

1. Native Range and Habitat

• Range: Common throughout the eastern half of the United States, from the Atlantic coast west to Texas and the Great Plains.
• Habitat: Deciduous hardwoods, oak-hickory groves, swamp forests, and mature suburban shade trees.

2. Eating Habits and Foraging Strategy

Red-bellied Woodpeckers are skilled, adaptable foragers that explore trunk bark, branches, and feeder stations.

Diet Composition:

• Insects: Wood-boring beetles, ants, caterpillars, and grubs picked from bark fissures.
• Nuts & Acorns: Acorns, beech nuts, hickory nuts, and pine seeds. They regularly wedge nuts into bark crevices to hammer them open or cache them for winter.
• Fruit & Sap: Wild grapes, oranges, suet, and tree sap.

3. Key Facts

• Long Sticky Tongue: Their tongue extends nearly 2 inches past the tip of their beak and features a barbed tip with sticky saliva to haul out wood-boring grubs.
• Nesting Habits: Both male and female excavate nest cavities in dead snags or soft dead limbs of living trees, taking 7 to 14 days to finish the hole.
• Feeder Regulars: They quickly learn to visit backyard bird feeders for suet, sunflower seeds, and peanuts.

4. Native Plants and Trees That Benefit Red-Bellieds

• Oaks & Hickories: Primary sources of natural nest trees and winter nut caches.
• Wild Grapevines (Vitis spp.) & Poison Ivy (Toxicodendron radicans): Produce high-energy berries consumed throughout late fall and winter.

5. Nest Box and Habitat Guidelines

• Leave Dead Branches: Retaining dead limbs on mature oaks provides natural foraging and nesting opportunities.
• Nest Box Specifications:
  • Interior Floor: 6" x 6".
  • Inside Height: 12 to 15 inches.
  • Entrance Hole: 2.5 inches in diameter.
  • Fill Box: Pack completely with wood shavings so they can “excavate” it themselves.