Latest results
BBS population trends
Bird population trends are published annually, and results from the most recent year are shown here.
Bird population trend tables
Bird population trend graphs
Combined results from a number of BTO schemes, including joint CBC/BBS trends, can be found in the BirdTrends Report. Trends published in previous years can be found by downloading the relevant annual report from the BBS publications page.
Country, region and county species summaries
Annual numbers of species recorded, and number of BBS squares per species, by country (England, Scotland, Wales and Northern Ireland), by English Region, and by county. These lists are updated annually.
Number of visit submissions to BBS
Graphs of square survey dates, and, number of squares surveyed by year. These figures are updated every day.
The latest mammal population trends produced using BBS data, and counts of mammals recorded on BBS squares in the most recent year.
BBS reports and other publications
To download BBS annual reports, and related publications, please see the BBS publications pages.
Species distribution maps
Choose a species, and view an animated sequence of maps showing where the species has been recorded on BBS squares in every year since 1994.
BBS coverage maps
Maps of where BBS squares have been covered in every year since 1994.
Relative abundance maps
Maps of relative abundance for 78 common and widespread breeding bird species, from a project carried out in 2003 using BBS data.
