"driski-sut" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en breton",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Oiseaux en breton",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Claude Péridy, An drask-sut, Evned Breizh, Hor Yezh, 1995, page 110",
          "text": "Paot eo an driski-sut e Breizh, m’o c’haver en inizi zoken, ….",
          "translation": "Les grives musiciennes sont nombreuses en Bretagne, où on les trouve même dans les îles, …."
        }
      ],
      "form_of": [
        {
          "word": "drask-sut"
        }
      ],
      "glosses": [
        "Pluriel de drask-sut, obtenu par une inflexion a > e > i."
      ],
      "id": "fr-driski-sut-br-noun-PXz4cURd",
      "topics": [
        "ornithology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\driskiˈsytː\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of",
    "plural"
  ],
  "word": "driski-sut"
}

{
  "categories": [
    "Formes de noms communs en breton",
    "breton"
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en breton",
        "Oiseaux en breton"
      ],
      "examples": [
        {
          "ref": "Claude Péridy, An drask-sut, Evned Breizh, Hor Yezh, 1995, page 110",
          "text": "Paot eo an driski-sut e Breizh, m’o c’haver en inizi zoken, ….",
          "translation": "Les grives musiciennes sont nombreuses en Bretagne, où on les trouve même dans les îles, …."
        }
      ],
      "form_of": [
        {
          "word": "drask-sut"
        }
      ],
      "glosses": [
        "Pluriel de drask-sut, obtenu par une inflexion a > e > i."
      ],
      "topics": [
        "ornithology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\driskiˈsytː\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of",
    "plural"
  ],
  "word": "driski-sut"
}