noun (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(noun.animal)

  Synonym:
  creeper
  

  source: wordnet30
• any of numerous South American and Central American birds with a curved bill and stiffened tail feathers that climb and feed like woodpeckers(noun.animal)

  Synonym:
  wood-creeper, woodcreeper, woodhewer
  

  source: wordnet30