North American Breeding Bird Survey Routes
type: Dataset
description: The North American Breeding Bird Survey (BBS), which is coordinated by the Biological Resources Division and Canadian Wildlife Service, is a primary source of population trend and distribution information for most species of North American birds. The BBS was initiated during 1966 by Chan Robbins and his associates at the Patuxent Wildlife Research Center to monitor the populations of all breeding bird species across the continental U.S., Canada, and Alaska. Approximately 2200 skilled observers participate in the survey each year. The BBS has accumulated 30 years of data on the abundance, distribution, and trends for more than 400 species of birds. These data are widely used by researchers, various federal and state agencies, non-governmental organizations, and the general public. Analyses of BBS data by PWRC statisticians have been instrumental in the development of innovative approaches for analyzing trends of wildlife populations.
issued: 2025-11-20T19:31:16.151546
modified: 2025-11-20T19:31:16.151551
spatial: Location
keyword: abundance
keyword: alaska
keyword: amerigeo
keyword: amerigeoss
keyword: biosphere
keyword: birds
keyword: canada
keyword: ckan
keyword: earth-science
keyword: ecological-dynamics
keyword: geo
keyword: geoss
keyword: mexico
keyword: national
keyword: north-america
keyword: population-dynamics
keyword: relative-abundance
keyword: species-abundance
keyword: united-states
keyword: united-status
keyword: zoology

Web Resource
type: Distribution
issued: 2020-11-29T22:34:32.556453
modified: 2025-11-20T19:31:16.140031
access URL: http://www.mp2-pwrc.usgs.gov/bbs/

US Migrating
type: Agent