How do woodcreepers and nuthatches search for food in tree bark?

Woodcreepers and nuthatches utilize distinct physical adaptations to forage for food within tree bark:

• Woodcreepers: These birds typically work their way upward along tree trunks. They possess broad, stiff tail feathers that serve as a prop to support their bodies while they climb. They use their bills to probe the bark and leaves in search of insects.1
• Nuthatches: Known for their ability to navigate trunks and branches in any direction—up, down, or around—nuthatches are often called "upside-down birds." They forage for insects and seeds by exploring crevices in the bark that other species, such as woodpeckers, often overlook. Additionally, nuthatches use bark crevices to wedge seeds in place, allowing them to "hack" the seeds open by pounding on them with their bills.2