"hormiguero negruzco" meaning in Spanish

{
  "forms": [
    {
      "form": "hormigueros negruzcos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "hormiguero negruzco m (plural hormigueros negruzcos)",
      "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"
        }
      ],
      "glosses": [
        "The dusky antbird, Cercomacroides tyrannina."
      ],
      "id": "en-hormiguero_negruzco-es-noun-qHUwG0Ld",
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "hormiguero negruzco"
}

{
  "forms": [
    {
      "form": "hormigueros negruzcos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "hormiguero negruzco m (plural hormigueros negruzcos)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries missing English vernacular names of taxa",
        "Entries using missing taxonomic name (species)",
        "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"
      ],
      "glosses": [
        "The dusky antbird, Cercomacroides tyrannina."
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "hormiguero negruzco"
}