We operated a bird banding station on the Point Loma peninsula in western San Diego County, California, during spring and summer from 2011 to 2015. The station was established in 2010 as part of a long-term monitoring program for neotropical migratory birds during spring migration and for breeding birds as part of the Monitoring Avian Productivity and Survivorship (MAPS) program. During spring migration (April and May), 2011–15, we captured 1,760 individual birds of 54 species, 91 percent (1,595) of which were newly banded, fewer than 1 percent (3) of which were recaptures that were banded in previous years, and 9 percent (143 hummingbirds, 2 hawks, and 17 other birds) of which we released unbanded. We observed an additional 22 species that were not captured. Thirty-four individuals were captured more than once. Bird capture rate averaged 0.49 ± 0.07 captures per net-hour (range 0.41–0.56). Species richness per day averaged 6.87 ± 0.33. Cardellina pusilla (Wilson’s warbler) was the most abundant spring migrant captured, followed by Empidonax difficilis (Pacific-slope flycatcher), Vireo gilvus (warbling vireo), Zonotrichia leucophrys (white-crowned sparrow), and Selasphorus rufus (rufous hummingbird). Captures of white-crowned sparrow decreased, and captures of Pacific-slope flycatcher increased, over the 5 years of our study. Fifty-six percent of known-sex individuals were male and 44 percent were female. The peak number of new species arriving per day ranged from April 1 (2013-six species) to April 16 (2012-five species). These data support the following publication: Lynn, Suellen, Madden, M.C., and Kus, B.E., 2017, Monitoring breeding and migration of neotropical migratory birds at Point Loma, San Diego County, California, 5-year summary, 2011–15: U.S. Geological Survey Open-File Report 2017-1042, 119 p., https://doi.org/10.3133/ofr20171042 and data can be found by navigating to USGS Bird Banding Laboratory: https://www.pwrc.usgs.gov/bbl/ and Institute for Bird Populations: http://www.birdpop.org/pages/maps.php.

Data files in this data series represent migrating bird count and habitat information collected during 1989, 1991, 1993, and 1994 field seasons at 13 riparian sites along the San Pedro River and its tributaries in southeastern Arizona, USA. At each site observations were made at up to 20 points, separated by 100 m arrayed along the riparian zone. Observation periods started at 20 minutes after sunrise, lasted for 7 minutes at each point and were completed within 4 hours. Bird detection and species identification were based on visual sighting, song, and call. Recorded observations were the number of individuals of each detected species detected using each detection method at each point and site within specified distance bands during each observation day (each point visited only once per day). Sites were visited from 11 to 22 times across the 3 field seasons. The Arizona bird count data release includes a CSV file with survey and site location data, including latitudes and longitudes for each site location. All codes and acronyms from the data are defined in the metadata, with the exception of a list of 4 letter species acronyms for which there is a key included as an attachment on the ScienceBase page.

Data files in this data series represent migrating bird count and habitat information collected during 1989, 1991, 1993, and 1994 field seasons at 13 riparian sites along the San Pedro River and its tributaries in southeastern Arizona, USA. At each site observations were made at up to 20 points, separated by 100 m arrayed along the riparian zone. Observation periods started at 20 minutes after sunrise, lasted for 7 minutes at each point and were completed within 4 hours. Bird detection and species identification were based on visual sighting, song, and call. Recorded observations were the number of individuals of each detected species detected using each detection method at each point and site within specified distance bands during each observation day (each point visited only once per day). Sites were visited from 11 to 22 times across the 3 field seasons. The Arizona bird count data release includes a CSV file with survey and site location data, including latitudes and longitudes for each site location. All codes and acronyms from the data are defined in the metadata, with the exception of a list of 4 letter species acronyms for which there is a key included as an attachment on the ScienceBase page.

This data release includes 1 child item with tracking data for Pacific Loons, a species that breeds throughout much of Alaska and winters throughout the Pacific Ocean basin, along the coasts of East Asia and North America. Child Item 1: "Argos Satellite Tracking Data for Pacific Loons (Gavia pacifica) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters.

This data release includes 1 child item with tracking data for Pacific Loons, a species that breeds throughout much of Alaska and winters throughout the Pacific Ocean basin, along the coasts of East Asia and North America. Child Item 1: "Argos Satellite Tracking Data for Pacific Loons (Gavia pacifica) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters.

This data release includes measures of vertically-integrated reflectivity (VIR) and estimates of linear trends in VIR as observed by the Weather Surveillance Radar 1988 Doppler (WSR-88D) stations along the Gulf of Mexico during spring and autumn migrations from 2018-2020. The VIR is a measure of bird density and can be used to map the spatial distribution of birds as they leave stopover habitat and resume nocturnal migration. This data release also includes seasonal and multi-year summary statistics.

This data release includes measures of vertically-integrated reflectivity (VIR) and estimates of linear trends in VIR as observed by the Weather Surveillance Radar 1988 Doppler (WSR-88D) stations along the Gulf of Mexico during spring and autumn migrations from 2018-2020. The VIR is a measure of bird density and can be used to map the spatial distribution of birds as they leave stopover habitat and resume nocturnal migration. This data release also includes seasonal and multi-year summary statistics.

This data package contains Sierra Nevada Network (SIEN) Inventory and Monitoring Program landbirds tabular data collected during 2011-2024 at Yosemite National Park (YOSE), Sequoia and Kings Canyon National Park (SEKI), and Devils Postpile National Monument (DEPO). The protocol, publications, and all other associated links can be found in the project reference at: Bird Monitoring Protocol for National Parks in the Sierra Nevada Network: https://irma.nps.gov/DataStore/Reference/Profile/2124954 National parks in SIEN 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 Sierra Nevada 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 SIEN 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 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 counting them is one of the most efficient ways to take the ecological pulse of an area. Surveys were conducted in two large wilderness parks: Yosemite (YOSE) and Sequoia and Kings Canyon (SEKI) National Parks, and in one small park: Devils Postpile National Monument (DEPO). 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 three SIEN parks during the breeding season and 2) track changes in the breeding season distribution of landbird species throughout accessible areas of SIEN parks.

This data package contains Sierra Nevada Network (SIEN) Inventory and Monitoring Program landbirds tabular data collected during 2011-2024 at Yosemite National Park (YOSE), Sequoia and Kings Canyon National Park (SEKI), and Devils Postpile National Monument (DEPO). The protocol, publications, and all other associated links can be found in the project reference at: Bird Monitoring Protocol for National Parks in the Sierra Nevada Network: https://irma.nps.gov/DataStore/Reference/Profile/2124954 National parks in SIEN 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 Sierra Nevada 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 SIEN 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 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 counting them is one of the most efficient ways to take the ecological pulse of an area. Surveys were conducted in two large wilderness parks: Yosemite (YOSE) and Sequoia and Kings Canyon (SEKI) National Parks, and in one small park: Devils Postpile National Monument (DEPO). 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 three SIEN parks during the breeding season and 2) track changes in the breeding season distribution of landbird species throughout accessible areas of SIEN parks.

This dataset was collected to understand the diversity and abundance of terrestrial birds to provide a baseline for major management actions such as grazing. This effort also establishes a baseline as future surveys track trends in species abundance indices.