"poule rouge" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de poule et de rouge."
  ],
  "forms": [
    {
      "form": "poules rouges",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "dodo"
    },
    {
      "word": "dronte"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en français",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Espèce d’oiseau éteinte de l’Île Maurice."
      ],
      "id": "fr-poule_rouge-fr-noun-3tJwE7Fd"
    }
  ],
  "sounds": [
    {
      "ipa": "\\pul ʁuʒ\\"
    }
  ],
  "synonyms": [
    {
      "word": "râle de Maurice"
    }
  ],
  "tags": [
    "feminine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "red rail"
    }
  ],
  "word": "poule rouge"
}

{
  "categories": [
    "Compositions en français",
    "Locutions nominales en français",
    "Traductions en anglais",
    "Traductions en conventions internationales",
    "français"
  ],
  "etymology_texts": [
    "Composé de poule et de rouge."
  ],
  "forms": [
    {
      "form": "poules rouges",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "dodo"
    },
    {
      "word": "dronte"
    }
  ],
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en français"
      ],
      "glosses": [
        "Espèce d’oiseau éteinte de l’Île Maurice."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\pul ʁuʒ\\"
    }
  ],
  "synonyms": [
    {
      "word": "râle de Maurice"
    }
  ],
  "tags": [
    "feminine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "red rail"
    }
  ],
  "word": "poule rouge"
}