Pacific Island Network Landbird Monitoring Dataset

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.