"maine à tête bleue" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Dates manquantes en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Moutons en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "À en français",
      "orig": "à en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ê en français",
      "orig": "ê en français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "(Siècle à préciser) De Maine, tête et bleue."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "glosses": [
        "Synonyme de bleu du Maine (race de mouton)."
      ],
      "id": "fr-maine_à_tête_bleue-fr-noun-ts0bUHfP"
    }
  ],
  "sounds": [
    {
      "ipa": "\\mɛ.n‿a tɛt blø\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "maine à tête bleue"
}

{
  "categories": [
    "Dates manquantes en français",
    "Locutions nominales en français",
    "Moutons en français",
    "français",
    "à en français",
    "ê en français"
  ],
  "etymology_texts": [
    "(Siècle à préciser) De Maine, tête et bleue."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "glosses": [
        "Synonyme de bleu du Maine (race de mouton)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\mɛ.n‿a tɛt blø\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "maine à tête bleue"
}