![]() We plan to publish the Atlas a year after completing field work that includes the following objectives: The timeline for this project is five years of field work (1995-1999), with analysis and writing to begin during that time. The goal of the Los Angeles County Breeding Bird Atlas (LACBBA) is the documentation of breeding distribution of all bird species in the county, to be published in book and CD-ROM form as an Atlas. Introduction- the goals of a breeding bird atlas Our Atlas Project is using ArcView maps to 1) demonstrate and evaluate progress, and 2) to ask questions about quality of the data during the project and therefore allow time for correction. ![]() Including GIS in the design of the database and maintaining a link to a GIS during the project allows for visualization of progress throughout the project. GIS is an ideal tool for managing such a project at relatively low cost on a desktop computer. A second goal is to end up with a data set in digital format that can be linked to other existing and future natural resource inventories. The goal of the Los Angeles County Breeding Bird Atlas is to publish an atlas, with distribution maps and a text summary for each of roughly 200 species. In each grid cell or block, field volunteers survey a representative of each habitat to look for proof of breeding, such as birds carrying nest material. 10 square miles, for volunteer surveying. A breeding bird atlas divides a state or county into manageable regions and a grid, e.g. BBS data are used extensively in the State of the Birds ReportBuilding and Using a GIS to Manage a Breeding Bird Atlasīreeding Bird Atlases are intensive field projects to map breeding bird distribution over an entire county or state.Overview article from Birding magazine, 2010.We also include a quiz in which users get to test their knowledge of wintering and breeding distributions of North American Birds. Patuxent Bird Quiz - The Bird Identification Quiz was developed to allow users to test themselves on visual and aural identification of birds likely to be seen on North American Breeding Bird Surveys and Christmas Bird Counts. Along with maps, images, song and call recordings, and life history information are provided for species encountered along BBS and CBC surveys. Custom analyses of population change allow of analysis of change for any combination of years over which the survey was conducted.īBS Bird ID - The Bird Identification Infocenter is a collection of breeding and wintering distribution maps derived from North American Breeding Bird Survey and Christmas Bird Count data. The website provides geographic displays and quantitative information on population trend (interval-specific yearly percentage changes) and annual indices of abundance for each species at several geographic scales, including survey-wide, states and Provinces, Bird Conservation Regions (physiographic strata), and for individual survey routes in the United States. The BBS provides data from 1966 for the contiguous United States and southern Canada (the “core” area), and the scope of inference expanded in 1993 to include additional regions in northern Canada and Alaska (the “expanded” area). Public domain.)īBS Analysis - The North American Breeding Bird Survey (BBS) Summary and Analysis Website provides summary information on population change for >500 species of North American birds. ![]() View Media Details Evening Grosbeak with BBS Trend Map (Credit: Mikey Lutmerding, USGS Patuxent Wildlife Research Center.
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