"渡り鳥" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "渡り",
        "3": "鳥",
        "pos1": "<i class=\"Jpan mention\" lang=\"ja\">渡る</i> (wataru, “to migrate”)",
        "t2": "bird",
        "tr1": "watari",
        "tr2": "tori"
      },
      "expansion": "渡り (watari, 渡る (wataru, “to migrate”)) + 鳥 (tori, “bird”)",
      "name": "af"
    }
  ],
  "etymology_text": "From 渡り (watari, 渡る (wataru, “to migrate”)) + 鳥 (tori, “bird”).",
  "forms": [
    {
      "form": "渡り鳥",
      "ruby": [
        [
          "渡",
          "わた"
        ],
        [
          "鳥",
          "どり"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "wataridori",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "わたりどり"
      },
      "expansion": "渡(わた)り鳥(どり) • (wataridori)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "ja",
          "name": "Birds",
          "orig": "ja:Birds",
          "parents": [
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a bird of passage; a migratory bird"
      ],
      "id": "en-渡り鳥-ja-noun-Wv0SYIH6",
      "links": [
        [
          "bird of passage",
          "bird of passage"
        ],
        [
          "migratory bird",
          "migratory bird"
        ]
      ],
      "wikipedia": [
        "ja:渡り鳥"
      ]
    }
  ],
  "sounds": [
    {
      "other": "わたりどり"
    },
    {
      "ipa": "[ɰᵝa̠ta̠ɾʲido̞ɾʲi]"
    }
  ],
  "word": "渡り鳥"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "渡り",
        "3": "鳥",
        "pos1": "<i class=\"Jpan mention\" lang=\"ja\">渡る</i> (wataru, “to migrate”)",
        "t2": "bird",
        "tr1": "watari",
        "tr2": "tori"
      },
      "expansion": "渡り (watari, 渡る (wataru, “to migrate”)) + 鳥 (tori, “bird”)",
      "name": "af"
    }
  ],
  "etymology_text": "From 渡り (watari, 渡る (wataru, “to migrate”)) + 鳥 (tori, “bird”).",
  "forms": [
    {
      "form": "渡り鳥",
      "ruby": [
        [
          "渡",
          "わた"
        ],
        [
          "鳥",
          "どり"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "wataridori",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "わたりどり"
      },
      "expansion": "渡(わた)り鳥(どり) • (wataridori)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese compound terms",
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with secondary school kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters",
        "ja:Birds"
      ],
      "glosses": [
        "a bird of passage; a migratory bird"
      ],
      "links": [
        [
          "bird of passage",
          "bird of passage"
        ],
        [
          "migratory bird",
          "migratory bird"
        ]
      ],
      "wikipedia": [
        "ja:渡り鳥"
      ]
    }
  ],
  "sounds": [
    {
      "other": "わたりどり"
    },
    {
      "ipa": "[ɰᵝa̠ta̠ɾʲido̞ɾʲi]"
    }
  ],
  "word": "渡り鳥"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "渡り鳥"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "渡り鳥",
  "trace": ""
}