"upperwing" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "upper",
        "3": "wing"
      },
      "expansion": "upper + wing",
      "name": "af"
    }
  ],
  "etymology_text": "From upper + wing.",
  "forms": [
    {
      "form": "upperwings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "upperwing (plural upperwings)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2015, Bob Flood, Ashley Fisher, Martin Elliott, Pterodroma Petrels: North Atlantic Seabirds",
          "text": "The original article (which see) mentions that the primary shafts on the upperwings lacked any whitish coloration.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The upper part of a wing of a bird or butterfly"
      ],
      "id": "en-upperwing-en-noun-7ence2kB",
      "links": [
        [
          "upper",
          "upper"
        ]
      ],
      "related": [
        {
          "word": "wingtip"
        },
        {
          "word": "underwing"
        }
      ]
    }
  ],
  "word": "upperwing"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "upper",
        "3": "wing"
      },
      "expansion": "upper + wing",
      "name": "af"
    }
  ],
  "etymology_text": "From upper + wing.",
  "forms": [
    {
      "form": "upperwings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "upperwing (plural upperwings)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "wingtip"
    },
    {
      "word": "underwing"
    }
  ],
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2015, Bob Flood, Ashley Fisher, Martin Elliott, Pterodroma Petrels: North Atlantic Seabirds",
          "text": "The original article (which see) mentions that the primary shafts on the upperwings lacked any whitish coloration.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The upper part of a wing of a bird or butterfly"
      ],
      "links": [
        [
          "upper",
          "upper"
        ]
      ]
    }
  ],
  "word": "upperwing"
}