"hocó oscuro" meaning in Spanish

{
  "forms": [
    {
      "form": "hocós oscuros",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "hocó oscuro m (plural hocós oscuros)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "es",
          "name": "Herons",
          "orig": "es:Herons",
          "parents": [
            "Freshwater birds",
            "Birds",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "fasciated tiger heron (Tigrisoma fasciatum)"
      ],
      "id": "en-hocó_oscuro-es-noun-uxjL4~7F",
      "links": [
        [
          "Tigrisoma fasciatum",
          "Tigrisoma fasciatum#Translingual"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "hocó oscuro"
}

{
  "forms": [
    {
      "form": "hocós oscuros",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "hocó oscuro m (plural hocós oscuros)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries missing English vernacular names of taxa",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine nouns",
        "Spanish multiword terms",
        "Spanish nouns",
        "Spanish nouns with red links in their headword lines",
        "es:Herons"
      ],
      "glosses": [
        "fasciated tiger heron (Tigrisoma fasciatum)"
      ],
      "links": [
        [
          "Tigrisoma fasciatum",
          "Tigrisoma fasciatum#Translingual"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "hocó oscuro"
}