creeper | (n) any of various small insectivorous birds of the northern hemisphere that climb up a tree trunk supporting themselves on stiff tail feathers and their feet, Syn. tree creeper |
woodhewer | (n) any of numerous South American and Central American birds with a curved bill and stiffened tail feathers that climb and feed like woodpeckers, Syn. wood-creeper, woodcreeper, tree creeper |