Question: how long does it take carolina wrens to fledge
[{'answer': '12 -- 14 days'}, {'provenance': [{'wikipedia_id': '474809', 'title': 'Carolina wren', 'start_paragraph_id': 49, 'start_character': 0, 'end_paragraph_id': 49, 'end_character': 669, 'bleu_score': 0.93017597163603, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10235526936054619241}, 'section': 'Section::::Behavior.:Breeding.\n'}]}]