"man-of-war bird" meaning in English

{
  "forms": [
    {
      "form": "man-of-war birds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "man-of-war bird (plural man-of-war 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": "lifeform",
          "langcode": "en",
          "name": "Birds",
          "orig": "en:Birds",
          "parents": [
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1790, William Bligh, A Narrative of the Mutiny",
          "text": "[A]s I saw the same again in the morning, and some men of war birds, I was led to believe we were not far from land.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Any of various (especially predatory) seabirds, especially a frigatebird or the Arctic skua."
      ],
      "id": "en-man-of-war_bird-en-noun-KxVVTtDs",
      "links": [
        [
          "seabird",
          "seabird"
        ],
        [
          "frigatebird",
          "frigatebird"
        ],
        [
          "Arctic skua",
          "Arctic skua"
        ]
      ]
    }
  ],
  "word": "man-of-war bird"
}

{
  "forms": [
    {
      "form": "man-of-war birds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "man-of-war bird (plural man-of-war 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",
        "Quotation templates to be cleaned",
        "en:Birds"
      ],
      "examples": [
        {
          "ref": "1790, William Bligh, A Narrative of the Mutiny",
          "text": "[A]s I saw the same again in the morning, and some men of war birds, I was led to believe we were not far from land.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Any of various (especially predatory) seabirds, especially a frigatebird or the Arctic skua."
      ],
      "links": [
        [
          "seabird",
          "seabird"
        ],
        [
          "frigatebird",
          "frigatebird"
        ],
        [
          "Arctic skua",
          "Arctic skua"
        ]
      ]
    }
  ],
  "word": "man-of-war bird"
}