"bullen-bullen" meaning in English

{
  "etymology_text": "Native Australian name, from its cry.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "bullen-bullen",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Australian English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Perching birds",
          "orig": "en:Perching birds",
          "parents": [
            "Birds",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The lyrebird."
      ],
      "id": "en-bullen-bullen-en-noun-vCzQlGTq",
      "links": [
        [
          "lyrebird",
          "lyrebird"
        ]
      ],
      "raw_glosses": [
        "(obsolete, Australia) The lyrebird."
      ],
      "tags": [
        "Australia",
        "obsolete"
      ]
    }
  ],
  "word": "bullen-bullen"
}

{
  "etymology_text": "Native Australian name, from its cry.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "bullen-bullen",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Australian English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with unknown or uncertain plurals",
        "English terms with obsolete senses",
        "Pages with 2 entries",
        "Pages with entries",
        "en:Perching birds"
      ],
      "glosses": [
        "The lyrebird."
      ],
      "links": [
        [
          "lyrebird",
          "lyrebird"
        ]
      ],
      "raw_glosses": [
        "(obsolete, Australia) The lyrebird."
      ],
      "tags": [
        "Australia",
        "obsolete"
      ]
    }
  ],
  "word": "bullen-bullen"
}