"merles vantards" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "merle vantard",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Forme de locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en français",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              4,
              19
            ]
          ],
          "ref": "Daniel Le-Dantec, fiche Merle vantard, oiseaux.net, 24 septembre 2008",
          "text": "Les merles vantards fréquentent les zones boisées, y compris la lisière des forêts qui bordent le littoral, les mangroves et les broussailles."
        }
      ],
      "form_of": [
        {
          "word": "merle vantard"
        }
      ],
      "glosses": [
        "Pluriel de merle vantard."
      ],
      "id": "fr-merles_vantards-fr-noun-kP5LaVkQ"
    }
  ],
  "sounds": [
    {
      "ipa": "\\mɛʁl vɑ̃.taʁ\\"
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "merles vantards"
}

{
  "categories": [
    "Formes de locutions nominales en français",
    "français"
  ],
  "forms": [
    {
      "form": "merle vantard",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Forme de locution nominale",
  "senses": [
    {
      "categories": [
        "Exemples en français"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              4,
              19
            ]
          ],
          "ref": "Daniel Le-Dantec, fiche Merle vantard, oiseaux.net, 24 septembre 2008",
          "text": "Les merles vantards fréquentent les zones boisées, y compris la lisière des forêts qui bordent le littoral, les mangroves et les broussailles."
        }
      ],
      "form_of": [
        {
          "word": "merle vantard"
        }
      ],
      "glosses": [
        "Pluriel de merle vantard."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\mɛʁl vɑ̃.taʁ\\"
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "merles vantards"
}