{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Jeffrey A. Hostetler",
    "hasEmail": "mailto:jhostetler@usgs.gov"
  },
  "description": "This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data.   Data are presented for 546 species of birds in 4 spreadsheets containing trend estimates and annual indices for 2 time periods.  Estimates are derived for each species using the 1 of 4 alternative models, and a cross-validation model selection procedure was used to select the best model for each species.   Metadata associated with this data product provides information specific to the associated analysis results; metadata for the BBS data are available at Ziolkowski, D.J., Lutmerding, M., English, W.B., Aponte, V.I., and Hudson, M-A.R., 2023, North American Breeding Bird Survey Dataset 1966 - 2023: U.S. Geological Survey data release, https://doi.org/10.5066/P136CRBV.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.5066/P1F2X4WH",
      "description": "Landing page for access to the data",
      "format": "XML",
      "mediaType": "application/http",
      "title": "Digital Data"
    },
    {
      "@type": "dcat:Distribution",
      "description": "The metadata original format",
      "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.67aba702d34e329fb20457b1.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_67aba702d34e329fb20457b1",
  "keyword": [
    "Bird Annual Indices",
    "Bird Lists",
    "Bird Trend Estimates",
    "Breeding Bird Survey",
    "Breeding Bird Survey Analysis",
    "Canada",
    "USGS:67aba702d34e329fb20457b1",
    "United States of America",
    "biota"
  ],
  "modified": "2025-02-25T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-169.8047, 22.5937, -48.1641, 71.9654",
  "theme": [
    "geospatial"
  ],
  "title": "The North American Breeding Bird Survey, Analysis Results 1966 - 2023"
}