Locations of and proportional abundance of non-native and synanthropic passerines were extracted from Breeding Bird Survey (BBS) data from 2010-2012. Information characterizing the spatial variation and the associated amount, aggregation, and diversity of developed and agricultural land cover types was extracted from the National Land Cover Datasets of 2011. Data supported analyses in the publication: Sofaer, H.R., C.H. Flather, C.S. Jarnevich, K.P. Davis, and L. Pejchar. Human-associated species dominate passerine communities across the United States. Global Ecology and Biogeography.

This monitoring dataset consists of variable circular plot - continuous distance - point count bird observations and site conditions along with extensive habitat data for breeding birds in the National Park Service Heartland Inventory and Monitoring Network Parks. The dataset includes approximately 65,000 individual bird observations covering over 200 bird species observed at 12 NPS park units taken between 2001 and 2022. The overall goals of Heartland Inventory and Monitoring Network breeding bird monitoring are the following: to identify significant temporal changes in the species composition and abundance of bird communities that occur on parks during the breeding season; to improve our understanding of relationships between breeding birds and their habitat and the effects of management actions, such as prairie restoration or prescribed fire, on bird populations. These goals are accomplished by examining potential correlations between changes in specific habitat variables, for example, vegetation structure and ground cover, and changes in bird community composition and abundance. The 12 park units included in this study are in Arkansas - Arkansas Post National Memorial and Pea Ridge National Military Park; Indiana - Lincoln Boyhood National Memorial; Iowa - Effigy Mounds National Monument and Herber Hoover National Historic Site; Kansas - Tallgrass Prairie National Preserve; Minnesota - Pipestone National Monument; Missouri - George Washington Carver National Monument and Wilson's Creek National Battlefield; Nebraska - Agate Fossil Beds National Monument and Homestead National Historical Park; and Ohio - Hopewell Culture National Historical Park.

This monitoring dataset consists of variable circular plot - continuous distance - point count bird observations and site conditions along with extensive habitat data for breeding birds in the National Park Service Heartland Inventory and Monitoring Network Parks. The dataset includes approximately 65,000 individual bird observations covering over 200 bird species observed at 12 NPS park units taken between 2001 and 2022. The overall goals of Heartland Inventory and Monitoring Network breeding bird monitoring are the following: to identify significant temporal changes in the species composition and abundance of bird communities that occur on parks during the breeding season; to improve our understanding of relationships between breeding birds and their habitat and the effects of management actions, such as prairie restoration or prescribed fire, on bird populations. These goals are accomplished by examining potential correlations between changes in specific habitat variables, for example, vegetation structure and ground cover, and changes in bird community composition and abundance. The 12 park units included in this study are in Arkansas - Arkansas Post National Memorial and Pea Ridge National Military Park; Indiana - Lincoln Boyhood National Memorial; Iowa - Effigy Mounds National Monument and Herber Hoover National Historic Site; Kansas - Tallgrass Prairie National Preserve; Minnesota - Pipestone National Monument; Missouri - George Washington Carver National Monument and Wilson's Creek National Battlefield; Nebraska - Agate Fossil Beds National Monument and Homestead National Historical Park; and Ohio - Hopewell Culture National Historical Park.

This page includes legacy releases of North American Breeding Bird Survey (BBS) data for the periods beginning in 1966 and ending with the years 2000 through 2015. These releases have been superseded by a more current release but are included here for archival purposes. The North American Breeding Bird Survey dataset contains avian point count data since 1966 for more than 700 North American bird taxa (species, races, and unidentified species groupings). These data are collected annually during the breeding season, primarily in June, along thousands of randomly established roadside survey routes in the United States and Canada. Routes are roughly 24.5 miles (39.2 km) long with counting locations placed at approximately half-mile (800-m) intervals, for a total of 50 stops. At each stop, a citizen scientist highly skilled in avian identification conducts a 3-minute point count, recording every bird seen or heard within a quarter-mile (400-m) radius. Surveys begin 30 minutes before local sunrise and take approximately 5 hours to complete. Routes are sampled once per year, with the total number of routes sampled per year growing over time; just over 500 routes were sampled in 1966, while in recent decades approximately 3000 routes have been sampled annually. In addition to avian count data, this dataset also contains survey date, survey start and end times, start and end weather conditions, a unique observer identification number, route identification information, and route location information including country, state, and BCR, as well as geographic coordinates of the route start points, and an indicator of run data quality.