"càlhera" meaning in Occitan

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots proparoxytons en occitan",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en occitan",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Occitan en graphie normalisée",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Occitan",
      "orig": "occitan",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "càlheras",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Occitan",
  "lang_code": "oc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "graphie normalisée"
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "calha"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Oiseaux en occitan",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Occitan niçois",
          "orig": "occitan niçois",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Variante de calha."
      ],
      "id": "fr-càlhera-oc-noun-PVGOKcK5",
      "raw_tags": [
        "Niçois"
      ],
      "tags": [
        "alt-of"
      ],
      "topics": [
        "ornithology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈkajeʁa]"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "càlhera"
}

{
  "categories": [
    "Mots proparoxytons en occitan",
    "Noms communs en occitan",
    "Occitan en graphie normalisée",
    "occitan"
  ],
  "forms": [
    {
      "form": "càlheras",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Occitan",
  "lang_code": "oc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "graphie normalisée"
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "calha"
        }
      ],
      "categories": [
        "Oiseaux en occitan",
        "occitan niçois"
      ],
      "glosses": [
        "Variante de calha."
      ],
      "raw_tags": [
        "Niçois"
      ],
      "tags": [
        "alt-of"
      ],
      "topics": [
        "ornithology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈkajeʁa]"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "càlhera"
}