Tree, Tree Trunk, Hole, Wood, Vegetation, abstract, backdrop, background, bare, bark, beautiful, beauty, biology, bird, botany, cavity, concepts, conceptual, conservation, day, drilled, ecological, ecology, environment, environmental, excavated, forest, gray, grey, hole, hollow, large, life, natural, nature, organic, organism, ornithology, outdoors, outside, scene, scenery, scenic, science, tree, trunk, vegetation, vertical, wilderness, wood, woodland, woodpecker, woods, outdoor, plant, achiever, fertilizer, zoology, piciform bird, pit, skill, discipline, twenty-four hours, direction, life science, improvement, woody plant, animal, opening, stage set, disfavor, rejection, conception, nude, transformation, naked, person, situation
Hole drilled by a large woodpecker in a bare tree trunk