Population trend graphs
The latest BBS report includes an annual update of population trends, specifically along waterways, for 24 species with the strongest association with that habitat type. These trends are repeated in the table below. Trends are derived from the entire WBBS data sets, and date back to 1999.
The Breeding Bird Survey Report and WBBS population trends
A full summary of the 2019 WBBS season and the latest WBBS population trends can be found in the WBBS pages (pages 32-35) of the of the Breeding Bird Survey Report.
BirdTrends and WBBS
BirdTrends contains information on the details of methodology and a discussion of each species - for which we produce WBBS trends - in a wider context.