"lesser scaup" meaning in English

{
  "forms": [
    {
      "form": "lesser scaups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lesser scaup (plural lesser scaups)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Ducks",
          "orig": "en:Ducks",
          "parents": [
            "Anatids",
            "Poultry",
            "Freshwater birds",
            "Birds",
            "Livestock",
            "Vertebrates",
            "Agriculture",
            "Animals",
            "Chordates",
            "Applied sciences",
            "Lifeforms",
            "Sciences",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "greater scaup"
        }
      ],
      "glosses": [
        "A scaup of the species Aythya affinis."
      ],
      "id": "en-lesser_scaup-en-noun-Qrc5dP9w",
      "links": [
        [
          "scaup",
          "scaup"
        ],
        [
          "Aythya affinis",
          "Aythya affinis#Translingual"
        ]
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "Aythya affinis",
          "tags": [
            "masculine"
          ],
          "word": "kleine topper"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Aythya affinis",
          "word": "pikkulapasotka"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Aythya affinis",
          "tags": [
            "feminine"
          ],
          "word": "Veilchenente"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "Aythya affinis",
          "word": "búbos réce"
        },
        {
          "code": "nv",
          "lang": "Navajo",
          "sense": "Aythya affinis",
          "word": "naalʼeełí táłtłʼááh nálnoʼí yázhí"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "amerikánskaja morskája čérnetʹ",
          "sense": "Aythya affinis",
          "tags": [
            "feminine"
          ],
          "word": "америка́нская морска́я че́рнеть"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "málaja morskája čérnetʹ",
          "sense": "Aythya affinis",
          "tags": [
            "feminine"
          ],
          "word": "ма́лая морска́я че́рнеть"
        }
      ],
      "wikipedia": [
        "Lesser Scaup"
      ]
    }
  ],
  "word": "lesser scaup"
}

{
  "coordinate_terms": [
    {
      "word": "greater scaup"
    }
  ],
  "forms": [
    {
      "form": "lesser scaups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lesser scaup (plural lesser scaups)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Ducks"
      ],
      "glosses": [
        "A scaup of the species Aythya affinis."
      ],
      "links": [
        [
          "scaup",
          "scaup"
        ],
        [
          "Aythya affinis",
          "Aythya affinis#Translingual"
        ]
      ],
      "wikipedia": [
        "Lesser Scaup"
      ]
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "Aythya affinis",
      "tags": [
        "masculine"
      ],
      "word": "kleine topper"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Aythya affinis",
      "word": "pikkulapasotka"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Aythya affinis",
      "tags": [
        "feminine"
      ],
      "word": "Veilchenente"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "Aythya affinis",
      "word": "búbos réce"
    },
    {
      "code": "nv",
      "lang": "Navajo",
      "sense": "Aythya affinis",
      "word": "naalʼeełí táłtłʼááh nálnoʼí yázhí"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "amerikánskaja morskája čérnetʹ",
      "sense": "Aythya affinis",
      "tags": [
        "feminine"
      ],
      "word": "америка́нская морска́я че́рнеть"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "málaja morskája čérnetʹ",
      "sense": "Aythya affinis",
      "tags": [
        "feminine"
      ],
      "word": "ма́лая морска́я че́рнеть"
    }
  ],
  "word": "lesser scaup"
}