{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Thomas K Buhl", "hasEmail": "mailto:tbuhl@usgs.gov"}, "description": "A biologist and field crew from Northern Prairie Wildlife Research Center visited sites nine times throughout the breeding season (late May to mid-July) to record counts of grassland birds.  Surveyors applied North American Breeding Bird Survey methodology to obtain counts at On-, Near-, and Off-road Stops, but unlike the North American Breeding Bird Survey, which features a single survey at each site, three replicate surveys were conducted on back-to-back-to-back days during each survey period to facilitate estimation of detection and occupancy probabilities.  Assignment of surveyors to individual sites followed a design protocol that allows observer effects to also be estimated.  The biologist visited each site once during the breeding season to record locations and characteristics of fine-grained habitat features such as presence of fences, utility lines, and other man-made and natural perches. The database includes detections of focal species of grassland birds and records of presence/absence and number of birds present based on visual and aural cues within a 100-m buffer around each survey point.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9JNSTKL", "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.64a6e867d34ef77fcb063e20.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_64a6e867d34ef77fcb063e20", "keyword": ["Land ownership", "Montana", "North American Breeding Bird Survey", "North Dakota", "Phillips County", "Relative abundance", "Songbirds", "Stutsman County", "USGS:64a6e867d34ef77fcb063e20", "Valley County", "biota", "birds", "detection probability", "migratory species", "native species", "observer effect", "occupancy probability", "roadside bias"], "modified": "2023-07-07T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-108.22357177661, 46.632164281477, -98.291931152, 48.992546748175", "theme": ["geospatial"], "title": "Investigating Detection and Roadside Bias in Surveys of Grassland Birds in the Northern Great Plains, ND 2015, MT 2017-2018"}