Bird Species

About this map

The 10- by 10-kilometer grids in this map depict bird species richness, or the number of unique bird species that occur in each area. In Los Angeles County, bird richness ranges from 9 species per grid to as many as 97!

The patterns of bird species richness in this map reflect gradients in rainfall (higher richness can be observed along the coast and mountain ranges, and lower richness in drier and hotter desert areas), as well as urban areas. How many bird species are there in your neighborhood?

The second layer of the map shows “hotspots” of species of conservation concern. These are endangered, threatened, and sensitive birds that will continue to need protection, management, and habitat restoration in order to continue living here. The five main hotspots are wetlands and waterbodies near Gorman and Lancaster, riparian areas in Santa Clarita, foothills in San Gabriel mountains and Puente Hills, and the Palos Verde peninsula.  However, any location in which sensitive breeding bird populations can be found is an in Los Angeles, it represents an important opportunity to protect and restore their habitat.

Data source:
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.