{
  "taxon_key": "itis:176830",
  "slug": "itis-176830",
  "scientific_name": "Larus delawarensis",
  "common_name": "Ring-Billed Gull",
  "rank": "Species",
  "rank_order": 43,
  "taxonomic_status": "accepted",
  "status_checked": "2026-08-05",
  "parent_taxon_key": "itis:176803",
  "lineage": {
    "kingdom": "Animalia",
    "phylum": "Chordata",
    "class": "Aves",
    "order": "Charadriiformes",
    "family": "Laridae"
  },
  "ids": {
    "worms_id": 148797,
    "itis_id": 176830,
    "gbif_id": null,
    "ncbi_id": null,
    "inat_id": null
  },
  "groups": [
    "calcofi:seabirds"
  ],
  "notes": "2026-08-05: worms_id 148797 via WoRMS TSN crosswalk (status accepted)",
  "direct": {
    "n_obs": 200,
    "n_samples": 200,
    "n_datasets": 1,
    "year_min": 1987,
    "year_max": 2022,
    "life_stages": []
  },
  "rollup": {
    "n_obs": 200,
    "n_taxa": 1,
    "n_species": 1,
    "n_datasets": 1,
    "year_min": 1987,
    "year_max": 2022
  },
  "datasets": [
    {
      "dataset_key": "farallon_bird-mammal",
      "n_obs": 200,
      "n_samples": 200,
      "year_min": 1987,
      "year_max": 2022,
      "life_stages": [],
      "years": {
        "1987": 1,
        "1988": 4,
        "1989": 2,
        "1991": 1,
        "1993": 1,
        "1995": 4,
        "1996": 1,
        "1997": 21,
        "1999": 4,
        "2000": 2,
        "2001": 90,
        "2004": 3,
        "2007": 12,
        "2009": 1,
        "2010": 21,
        "2011": 3,
        "2012": 1,
        "2013": 4,
        "2014": 11,
        "2017": 2,
        "2019": 6,
        "2022": 5
      },
      "sources": [
        {
          "name": "Larus delawarensis",
          "common_name": "Ring-Billed Gull",
          "code": "RBGU",
          "ids": {
            "worms_id": null,
            "itis_id": 176830,
            "gbif_id": null
          },
          "flags": []
        }
      ]
    }
  ]
}