The following was recorded for the database: observer, start and end time, tide level, weather variables, temperature, cloud cover, wind, bird observed, GPS location, and habitat.

Shoreline bird surveys were conducted in Kalaupapa National Historical Park to inventory avian species diversity and relative abundance. Seasonal migrants (waterfowl, shorebirds) were the primary focus of the routine surveys, but seabirds, raptorial species, and native waterbirds were also recorded as encountered. The coastline of Kalaupapa National Historical Park was surveyed once over a two day period, 5-6 April 2005. The park coast consists of sandy and rocky beaches, steep rock cliffs adjoining grassy pastures, and uninhabited offshore islets. Pacific golden plovers, wandering tattlers, and ruddy turnstones are common seasonal migrants that were observed along the survey route. Four seabird species common to the Hawaiian Islands, great frigatebird, wedge-tailed shearwater, re-tailed tropicbird, and white-tailed tropicbird were observed as well. An unknown booby species, most likely red-footed booby was seen on the offshore islets. All passerine species observed along the shoreline route were non-native. No waterfowl or raptors were observed during the survey. Also included are GIS shapefiles of the shoreline bird inventory route taken, and all species detected during the inventory.

This data describes the bird community in the lowland region of Hawaii Volcanoes National Park. Birds were surveyed using the line transect method, which includes measuring species, distance to bird, angle to bird, angle to trail, coordinates of beginning and end of trail and of each observation.

Bird surveys were conducted in March 2005 along shorelines in and adjacent to Hawaii Volcanoes National Park . Variables recorded at the start and end of each survey included time, GPS location, observer initials, temperature in Fahrenheit, cloud cover estimated to the nearest five percent, wind speed according to the Beaufort Wind Scale, and precipitation according to a five-point scale (no precipitation, mist or fog, drizzle, light rain, and heavy rain). Each bird recorded was accompanied with the GPS location of the bird, or GPS location of the observer with distance and bearing to the bird. Habitat type at the birds's location was also recorded using 21 habitat classifications. GPS location was documented usintga Garmin 12 CX and using the Universal Transverse Mercator, North American Datum 1983, 5Q.

Four Pacific Island Network parks were surveyed for landbirds and landbird habitat in order to provide information for monitoring long-term trends in forest bird distribution, density, and abundance. Hawaii Volcanoes National Park (HAVO) was surveyed in 2010, 2015/2016 and 2019/2020. Surveys were conducted in the National Park of American Samoa (NPSA) in 2011 and 2018, in Haleakala National Park (HALE) in 2012, 2017, and 2022, and in 2021, surveys began at Kalaupapa National Historical Park (KALA). The entire survey areas were surveyed using point-transect distance sampling to calculate estimates of bird abundance and densities. Canopy cover and composition was collected at the same survey area. In addition to the permanent survey transects from past landbird surveys in the survey areas, randomly generated point-transects were also surveyed, providing a split panel sampling design. This dataset contains the results of the landbird point count and habitat surveys for HAVO, NPSA, HALE, and KALA.

Eight-minute point-transect distance bird surveys were collected in and around Haleakala National Park from 1993-2008. This dataset contains the location, species, and distance to detected birds, as well as identifying initials to distinguish among observers.

Eight-minute point-transect distance bird surveys were collected in and around Haleakala National Park from 1993-2008. This dataset contains the location, species, and distance to detected birds, as well as identifying initials to distinguish among observers.

This data release includes 2 child items with tracking data for Whimbrels, a shorebird found throughout tundra and boreal habitats of Alaska during the summer and winters along the coasts of the continental U.S., and central and South America. Child Item 1: "Argos Satellite Tracking Data for Whimbrels (Numenius phaeopus) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters. Child Item 2: "Argos Satellite Tracking Data for Whimbrels (Numenius phaeopus) - Raw Data" -- All raw data collected from Argos satellite transmitters, provided for completeness of the archive. The quality-controlled, "Argos Processed Data" (Child Item 1) are better suited for most analytical purposes.

This data release includes 2 child items with tracking data for Whimbrels, a shorebird found throughout tundra and boreal habitats of Alaska during the summer and winters along the coasts of the continental U.S., and central and South America. Child Item 1: "Argos Satellite Tracking Data for Whimbrels (Numenius phaeopus) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters. Child Item 2: "Argos Satellite Tracking Data for Whimbrels (Numenius phaeopus) - Raw Data" -- All raw data collected from Argos satellite transmitters, provided for completeness of the archive. The quality-controlled, "Argos Processed Data" (Child Item 1) are better suited for most analytical purposes.

Four parks in the Pacific Island Network were surveyed to monitor long-term trends in landbird composition, distribution, density, and abundance. Hawaiʻi Volcanoes National Park (HAVO) was surveyed in 2010, 2015-2016, 2019-2021, and 2024; the National Park of American Samoa (NPSA) in 2011, 2018, and 2023; and Haleakalā National Park (HALE) in 2012, 2017, and 2022. Surveys began in 2021 at Kalaupapa National Historical Park (KALA) and neighboring lands managed by the Hawaiʻi Department of Land and Natural Resources and The Nature Conservancy. Surveys in HAVO also included some adjacent state and private conservation lands and thus results provide broad spatial coverage of species detected. Using point-transect distance sampling, the surveys provide indices of relative abundance and occurrence. The dominant canopy species composition, canopy height and cover, and dominant understory species composition are also recorded at each survey station. Estimates of landbird population density and abundance are assessed in a trend analysis and published in the NPS Science Report Series or scientific journal. Alongside permanent survey transects from past surveys, randomly generated point-transects were included, creating a split-panel sampling design. This dataset includes the results from these landbird and habitat surveys.