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Definition of spinetail in English English dictionary
- The ruddy duck
- Any one of several species of South American and Central American clamatorial birds belonging to Synallaxis and allied genera of the family Dendrocolaptidæ
- Any one or several species of swifts of the genus Acanthylis, or Chætura, and allied genera, in which the shafts of the tail feathers terminate in rigid spines
- They are allied to the ovenbirds