"mother-bird" meaning in English

{
  "forms": [
    {
      "form": "mother-birds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mother-bird (plural mother-birds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1902, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Bush Studies (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 5:",
          "text": "From the branch of a tree overhead she heard a watchful mother-bird's warning call, and the twitter of the disturbed nestlings.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A female parent of a chick or chicks."
      ],
      "id": "en-mother-bird-en-noun-Dv5G4Nf7"
    }
  ],
  "word": "mother-bird"
}

{
  "forms": [
    {
      "form": "mother-birds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mother-bird (plural mother-birds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1902, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Bush Studies (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 5:",
          "text": "From the branch of a tree overhead she heard a watchful mother-bird's warning call, and the twitter of the disturbed nestlings.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A female parent of a chick or chicks."
      ]
    }
  ],
  "word": "mother-bird"
}