Small woodpecker of coastal forests, including mangroves, overgrown plantations, and urban areas. Unmistakable in its limited range. In all plumages note red back and heavy barring below. Often occurs in pairs. Climbs tree trunks and woody vines, boring into decaying wood for insect prey; may also forage in bromeliads and other arboreal plants. Can be noisy in aggressive interactions; gives various sharp calls similar to other small woodpeckers.