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.

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.

In 2021, on the island of Molokai, reserves managed by The Nature Conservancy and the Hawaii Department of Land and Natural Resources; as well as Kalaupapa National Park were surveyed for landbirds and landbird habitat in order to provide information for monitoring long-term trends in forest bird distribution, density, and abundance. Based on the point-transect distance sampling history on Molakai, a 3,527-ha core area was defined to assess long-term population trends since 1979, when the first surveys were conducted. Areas of Kalaupapa National Park were excluded from the core area because of an intermittent survey schedule. However, this dataset provides all of the 2021 survey data including areas inside and outside the core area, which is denoted by “Core_Area”. A summary of the 2021 survey results for the core area and for Kalauapapa National Park will be provided in separate products, such as an NPS National Resource Report and a relevant scientific journal. The 2021 survey effort is expected to be repeated in collaboration with PACN, The Nature Conservancy, the Maui Forest Bird Recovery Project, and the Hawaii Department of Land and Natural Resources every 5-6 years.

In 2021, on the island of Molokai, reserves managed by The Nature Conservancy and the Hawaii Department of Land and Natural Resources; as well as Kalaupapa National Park were surveyed for landbirds and landbird habitat in order to provide information for monitoring long-term trends in forest bird distribution, density, and abundance. Based on the point-transect distance sampling history on Molakai, a 3,527-ha core area was defined to assess long-term population trends since 1979, when the first surveys were conducted. Areas of Kalaupapa National Park were excluded from the core area because of an intermittent survey schedule. However, this dataset provides all of the 2021 survey data including areas inside and outside the core area, which is denoted by “Core_Area”. A summary of the 2021 survey results for the core area and for Kalauapapa National Park will be provided in separate products, such as an NPS National Resource Report and a relevant scientific journal. The 2021 survey effort is expected to be repeated in collaboration with PACN, The Nature Conservancy, the Maui Forest Bird Recovery Project, and the Hawaii Department of Land and Natural Resources every 5-6 years.

The Southeast Coast Network (SECN) initiated a pilot program using the Variable-radius circular plot point count method as a way to establish a quality-control method for data collected via automated recording devices (ARDs). Landbirds were selected as a vital sign for monitoring due to their interaction with several trophic levels in the environments they reside in, leading to landbird populations being an effective way to analyze the ecological conditions of those environments. The monitoring was performed in the spring of 2009 and 2010, where selected park units were surveyed once. Observations were made from sampling locations scattered throughout each park. Observed birds, either visually or audially, were recorded throughout a 12-minute time period at each sampling point. Over 19,000 observations of 173 species were made across 14 NPS park units in 2009 and 2010. Data collected under this protocol are stored in the SECN data management system and are available online in the Integration of Resource Management Applications (IRMA) database maintained by the Inventory and Monitoring Division national office located in Fort Collins, Colorado.

The Southeast Coast Network (SECN) initiated a pilot program using the Variable-radius circular plot point count method as a way to establish a quality-control method for data collected via automated recording devices (ARDs). Landbirds were selected as a vital sign for monitoring due to their interaction with several trophic levels in the environments they reside in, leading to landbird populations being an effective way to analyze the ecological conditions of those environments. The monitoring was performed in the spring of 2009 and 2010, where selected park units were surveyed once. Observations were made from sampling locations scattered throughout each park. Observed birds, either visually or audially, were recorded throughout a 12-minute time period at each sampling point. Over 19,000 observations of 173 species were made across 14 NPS park units in 2009 and 2010. Data collected under this protocol are stored in the SECN data management system and are available online in the Integration of Resource Management Applications (IRMA) database maintained by the Inventory and Monitoring Division national office located in Fort Collins, Colorado.

The Southeast Coast Network (SECN) initiated a pilot program using the Variable-radius circular plot point count method as a way to establish a quality-control method for data collected via automated recording devices (ARDs). Landbirds were selected as a vital sign for monitoring due to their interaction with several trophic levels in the environments they reside in, leading to landbird populations being an effective way to analyze the ecological conditions of those environments. The monitoring was performed in the spring of 2009 and 2010, where selected park units were surveyed once. Observations were made from sampling locations scattered throughout each park. Observed birds, either visually or audially, were recorded throughout a 12-minute time period at each sampling point. Over 19,000 observations of 173 species were made across 14 NPS park units in 2009 and 2010. Data collected under this protocol are stored in the SECN data management system and are available online in the Integration of Resource Management Applications (IRMA) database maintained by the Inventory and Monitoring Division national office located in Fort Collins, Colorado.

This data package contains North Coast and Cascades Network (NCCN) Inventory and Monitoring Program landbird monitoring data collected during 2005-2023 at Lewis and Clark National Historical Park (LEWI), Mount Rainier National Park (MORA), North Cascades National Park Complex (NOCA), Olympic National Park (OLYM), and San Juan Island National Historical Park (SAJH). The protocol, publications, and all other associated links can be found in the project reference at: NCCN Landbird Monitoring https://irma.nps.gov/DataStore/Reference/Profile/2097578 National parks in the North Coast and Cascades Network (NCCN) can fulfill vital roles as refuges for bird species dependent on late-successional forest conditions and as reference sites for assessing the effects of land-use and land-cover changes on bird populations throughout the larger Pacific Northwest region. These changes may result from regional processes such as land conversion and forest management, or from broader-scale phenomena such as global climate change. Monitoring population trends at ‘control’ sites in national parks is especially important because the parks are among the few sites in the United States where population trends resulting from large-scale regional or global change patterns are relatively unaffected by local changes in land use. Long-term monitoring of landbirds throughout the NCCN provides information that can inform decisions about important management issues in the parks, including visitor impacts, fire management, and the effects of introduced species. Landbirds are vital to every Northwest ecosystem. They are critical food-chain links, eating millions of seeds and insects and in turn, are prey for other creatures. Because they have specific needs for food, nest sites, and habitats they are easily impacted by change. For these reasons, birds are among the most sensitive indicators of ecosystem health and monitoring them is one of the most efficient ways to take the ecological pulse of an area. Surveys were conducted in three large wilderness parks: North Cascades (NOCA), Olympic (OLYM), and Mount Rainier (MORA) National Parks and in two small parks: Lewis and Clark National Historical Park (LEWI) and San Juan Island National Historical Park (SAJH). Objectives are to 1) detect trends in the density of as many landbird species (including passerines, near-passerines, and galliformes) as possible throughout accessible areas of five NCCN parks during the breeding season and 2) track changes in the breeding season distribution of landbird species throughout accessible areas of the large wilderness parks.

This data package contains North Coast and Cascades Network (NCCN) Inventory and Monitoring Program landbird monitoring data collected during 2005-2023 at Lewis and Clark National Historical Park (LEWI), Mount Rainier National Park (MORA), North Cascades National Park Complex (NOCA), Olympic National Park (OLYM), and San Juan Island National Historical Park (SAJH). The protocol, publications, and all other associated links can be found in the project reference at: NCCN Landbird Monitoring https://irma.nps.gov/DataStore/Reference/Profile/2097578 National parks in the North Coast and Cascades Network (NCCN) can fulfill vital roles as refuges for bird species dependent on late-successional forest conditions and as reference sites for assessing the effects of land-use and land-cover changes on bird populations throughout the larger Pacific Northwest region. These changes may result from regional processes such as land conversion and forest management, or from broader-scale phenomena such as global climate change. Monitoring population trends at ‘control’ sites in national parks is especially important because the parks are among the few sites in the United States where population trends resulting from large-scale regional or global change patterns are relatively unaffected by local changes in land use. Long-term monitoring of landbirds throughout the NCCN provides information that can inform decisions about important management issues in the parks, including visitor impacts, fire management, and the effects of introduced species. Landbirds are vital to every Northwest ecosystem. They are critical food-chain links, eating millions of seeds and insects and in turn, are prey for other creatures. Because they have specific needs for food, nest sites, and habitats they are easily impacted by change. For these reasons, birds are among the most sensitive indicators of ecosystem health and monitoring them is one of the most efficient ways to take the ecological pulse of an area. Surveys were conducted in three large wilderness parks: North Cascades (NOCA), Olympic (OLYM), and Mount Rainier (MORA) National Parks and in two small parks: Lewis and Clark National Historical Park (LEWI) and San Juan Island National Historical Park (SAJH). Objectives are to 1) detect trends in the density of as many landbird species (including passerines, near-passerines, and galliformes) as possible throughout accessible areas of five NCCN parks during the breeding season and 2) track changes in the breeding season distribution of landbird species throughout accessible areas of the large wilderness parks.