Wetland breeding birds, including ducks, herons, grebes, cormorants, rails, and blackbirds, require freshwater wetlands. Over the last century, both coastal and inland wetlands in the LA Basin have been significantly reduced. These rare habitats are now restricted to a small number of protected areas.
The highest wetland bird species richness in Los Angeles County occurs at the Piute Ponds on Edwards Air Force Base (north of Landcaster). There are also a number of urban locations, such as the Sepulveda basin, that contain a high number of breeding wetland birds as well.
Los Angeles County Breeding Bird Survey © LA Audubon 2016
About this map:
The data in this map has been adapted from the Breeding Bird Atlas, a Los Angeles Audubon Society publication created by Larry W. Allen and Kimball L. Garrett, with maps compiled by Mark C. Wimer. The Breeding Bird Atlas includes data for over 200 breeding bird species in Los Angeles County, based on fieldwork conducted from 1995 to 1999. Over 300 volunteer observers contributed 10,000+ hours to gather more than 28,000 records.
The Breeding Bird Atlas is an excellent model of systematic biodiversity research and surveys. The book contains summaries of breeding bird distributions, habitat requirements, and important conservation indicators (abundance, population trends), as well as maps of confirmed and suspected breeding locations. The Biodiversity Atlas presents summaries of the data at a 10- by 10-kilometer spatial resolution.